ووفقا لبيانات الجمارك الصينية ، تنزانيا imported gantry cranes from China in 2021 with a value of US $545000, compared with us $2015000 in 2020. In terms of import quantity, Tanzania imported 9 sets of gantry cranes from China in 2021, with an average import price of US $60000. In 2020, it imported 14 sets of gantry cranes, with an average import price of US $143900. In terms of import quantity and amount, Tanzania's gantry crane market has shown a certain degree of decline, which is not good news for Chinese crane suppliers to further open the Tanzanian crane market. At the macro level, trade between China and Tanzania is closer. In 2021, the bilateral import and export volume of goods between China and Tanzania was US $6744.52 million, an increase of US $2160.7358 million over the same period in 2020, a year-on-year increase of 47.1%. Perhaps Tanzania's gantry crane market still has bright prospects in the future
ممتازة رافعة المورد في الصين ، دونغ تشى رافعة يمكن أن توفر مختلف رافعة المنتجات إلى تنزانيا. في نفس الوقت, دونغ تشى الرافعة crane أوامر من تنزانيا في كل عام. دونغ تشى رافعة يمكن مستقل استكمال تركيب وصيانة الرافعات المختلفة في تنزانيا. دونغ تشى الرفع لديها العديد من أنواع مختلفة من رافعات جسرية على التعامل مع بيئات العمل المختلفة. هذه المقالة سوف أعرض العامل الخصائص والمعايير الفنية من أنواع مختلفة من رافعات جسرية على التنزانية العملاء. إذا كنت مهتما في منتجاتنا ، يمكنك النقر هنا الاتصال بناأو قل لنا من قبل البريد الإلكتروني: sales010@cranesdq.com
بروتابلي رافعة جسرية تباع إلى تنزانيا سعر
رافعة جسرية
Span(م)
رفع الارتفاع(m)
التيار الكهربائي(V)
السعر(دولار أمريكي)
0.25 طن
2~12
1~9
220-480/3/50
$900~9000
0.5 طن
2~12
1~9
220-480/3/50
$1200~12000
1 طن
2~12
1~9
220-480/3/50
$1500~15000
2 طن
2~12
1~9
220-480/3/50
$2000~20000
3 طن
2~12
1~9
220-480/3/50
$3000~30000
5 طن
2~12
1~9
220-480/3/50
$4500~46000
10 طن
2~12
1~9
220-480/3/50
$7000~65000
السعر أعلاه العملاقة رافعات جسرية سوف تتغير مع السوق دون إشعار آخر ، للرجوع إليها فقط. إذا كنت بحاجة إلى دقة الأسعار في المستقبل القريب ، يرجى الاتصال بنا.
السعر أعلاه العملاقة رافعات جسرية سوف تتغير مع السوق دون إشعار آخر ، للرجوع إليها فقط. إذا كنت بحاجة إلى دقة الأسعار في المستقبل القريب, يرجى الاتصال بنا.
أنواع الرافعات العملاقة التي تقدمها دونغ تشى رافعة تنزانيا
عارضة واحدة رافعة جسرية على تنزانيا
Single girder Gantry crane is a regular crane widely used in open ground and warehouses for loading and unloading materials.
الميزات:
الزائد جهاز الحماية منع رفع الأحمال تجاوز السعة
مفتاح الحد لمنع الرفع الزائد والخفض الزائد
الخطوة 2 التبديل الحد لمنع overtransversing و overtravelling
مزلاج الأمان على هوك
مسموعة يشير الجهاز الذي ينشط عندما الرافعة تتحرك
تناوب الضوء الذي ينشط عندما الرافعة تتحرك
مسطحة مرنة كابل اكليل النظام عبر السفر إمدادات الطاقة المتنقلة السيطرة على رافعة الجسر
دفع أزرار قلادة مع استكمال السيطرة على كابل المنقولة مربع المحطة الطرفية
Single-beam gantry cranes have wide application potential in many fields in Tanzania due to their simple structure, light weight, convenient operation and strong adaptability. The following is a specific analysis of the application of single-beam gantry cranes in Tanzania:
1. تعمل الخصائص واحد العارضة الرافعات العملاقة
Simple structure: Single-beam gantry cranes have compact structures, are easy to install and maintain, and reduce the cost of use.
Light weight: Compared with double-beam gantry cranes, single-beam gantry cranes are lighter in weight and have relatively low requirements for foundations, making them suitable for a variety of site conditions.
Convenient operation: Single-beam gantry cranes are easy to operate. Through modern control systems and user-friendly operating interfaces, operators can easily complete various lifting tasks.
Strong adaptability: Single-beam gantry cranes can be customized according to the specific needs of users, such as lifting weight, span, speed, etc., to meet different working environments and task requirements.
Safe and reliable: Equipped with a variety of safety protection measures, such as overload protection, limit protection, emergency stop, etc., to ensure the safety and stability of the operation process.
2. Application of single-beam gantry cranes in Tanzania
التصنيع:
In Tanzania's manufacturing industry, single-beam gantry cranes can be used for material handling, parts assembly and other operations on the production line to improve production efficiency.
Especially in industries such as automobile manufacturing and machinery manufacturing, single-beam gantry cranes can easily handle the lifting and handling of heavy parts.
الخدمات اللوجستية:
In Tanzania's logistics centers, warehouses and other places, single-beam gantry cranes can be used for cargo loading, unloading, stacking and sorting operations.
Its flexibility and efficiency help improve logistics efficiency and reduce operating costs.
بناء البنية التحتية:
In Tanzania's infrastructure construction projects, such as bridge construction and road construction, single-beam gantry cranes can be used to lift large components, building materials, etc.
Its strong lifting capacity and adaptability enable the crane to operate efficiently in complex environments.
الزراعة:
In Tanzania's agricultural field, single-beam gantry cranes can be used for storage, processing and transportation of agricultural products.
For example, in grain warehouses, cranes can be used for grain loading, unloading and stacking operations to improve the efficiency of grain storage and management.
مجالات أخرى:
Single-beam gantry cranes can also be used for cargo loading and unloading operations in ports, docks and other places, as well as material handling operations in metallurgy, chemical industry and other industries.
3. Application precautions
التكيف مع البيئة:
When using single-beam gantry cranes in Tanzania, it is necessary to consider local climatic conditions, such as high temperature, humidity and other possible effects on the crane.
Ensure that the crane can work normally under local climatic conditions to avoid failures caused by environmental factors.
Operation training:
Provide professional operation training for operators to ensure that they can operate the crane correctly and safely.
Improve the safety awareness of operators to avoid safety accidents caused by improper operation.
الصيانة:
Regularly maintain the crane and check whether the electrical system, mechanical components, etc. are operating normally.
Replace worn parts in time to ensure the long-term stable operation of the crane.
مفتاح حد مكون من خطوتين لمنع الإفراط في العرض والسفر الزائد
مزلاج الأمان على هوك
مسموعة يشير الجهاز الذي ينشط عندما الرافعة تتحرك
تناوب الضوء الذي ينشط عندما الرافعة تتحرك
مسطحة مرنة كابل اكليل النظام عبر السفر إمدادات الطاقة المتنقلة السيطرة على رافعة الجسر
دفع أزرار قلادة مع استكمال السيطرة على كابل المنقولة مربع المحطة الطرفية
Double-girder gantry cranes, with their strong load-bearing capacity, high stability, operational flexibility and wide range of applications, have significant application value in many industrial and construction fields in Tanzania. The following is a specific analysis of the application of double-girder gantry cranes in Tanzania:
1. تعمل خصائص مزدوجة العارضة رافعة جسرية
قوية القدرة الاستيعابية:
The double-girder structure makes the crane have higher strength and stability, can bear greater weight, and is suitable for handling and hoisting of heavy goods.
عالية الاستقرار:
The double-girder design enhances the wind resistance and stability of the crane, allowing it to remain stable under harsh environmental conditions and ensuring the safety and accuracy of operations.
عملية مرنة:
Double-girder gantry cranes can be equipped with a variety of operating modes, such as manual control, remote control operation, etc., to meet different operating needs and improve operational flexibility.
فترة كبيرة:
The double-girder gantry crane has a larger span and can adapt to cargo handling and hoisting needs of different widths, improving space utilization.
قابلة للتكيف:
Double-girder gantry cranes can be customized according to the specific needs of users, such as lifting weight, span, speed, etc., to adapt to different working environments and task requirements.
2. Application of double-girder gantry crane in Tanzania
المناولة في الميناء:
In Tanzania's port operations, double-girder gantry cranes can easily handle bulk cargo loading and unloading tasks, such as containers, bulk cargo, etc., greatly improving loading and unloading efficiency.
Its strong carrying capacity and stability ensure the safety and reliability of port operations.
التصنيع:
In Tanzania's manufacturing industry, double-girder gantry cranes can be used for material handling, assembly and other tasks on the production line to achieve automation and efficiency of the production process.
Especially in heavy machinery manufacturing, automobile manufacturing and other industries, double-girder gantry cranes can play an important role.
بناء البنية التحتية:
In infrastructure construction projects in Tanzania, such as bridge construction, road construction, water conservancy project construction, etc., double-girder gantry cranes can be used to hoist large components, building materials, etc.
Its large span and strong carrying capacity enable the crane to operate efficiently in complex construction environments.
صناعة الخدمات اللوجستية:
In Tanzania's logistics centers, warehouses and other places, double-girder gantry cranes can be used for loading, unloading, stacking and sorting of goods.
Its flexible operation and high efficiency help improve logistics efficiency and reduce operating costs.
مجالات أخرى:
Double-girder gantry cranes can also be used for material handling operations in metallurgy, chemical and other industries, as well as for storage, processing and transportation of agricultural products in the agricultural field.
شبه العملاقة واحدة/مزدوجة العارضة رافعة تستخدم في تطبيقات مثل أداة الغرفة حيث استخدام جزء من خليج مطلوب ، أو في الهواء الطلق المواقع حيث العملاقة السكك الحديدية يمكن تركيبها بجانب بنية القائمة.
الميزات:
الزائد جهاز الحماية منع رفع الأحمال تجاوز السعة
مفتاح الحد لمنع الرفع الزائد والخفض الزائد
مفتاح حد مكون من خطوتين لمنع الإفراط في العرض والسفر الزائد
مزلاج الأمان على هوك
مسموعة يشير الجهاز الذي ينشط عندما الرافعة تتحرك
تناوب الضوء الذي ينشط عندما الرافعة تتحرك
مسطحة مرنة كابل اكليل النظام عبر السفر إمدادات الطاقة المتنقلة السيطرة على رافعة الجسر
دفع أزرار قلادة مع استكمال السيطرة على كابل المنقولة مربع المحطة الطرفية
Semi-gantry cranes, with their unique structural features, wide range of applications and high flexibility, have shown significant application value in many fields in Tanzania. The following is a specific analysis of the application of semi-gantry cranes in Tanzania:
1. Working characteristics of semi-gantry crane
Structural features:
A شبه رافعة جسرية has its legs built into the ground and a cantilever beam extending into the work area, creating a semi-gantry look.
The structure is simple and consists of a bracket, a cantilever beam, a cart, a trolley, a lifting mechanism and an electronic control system.
قوية القدرة الاستيعابية:
According to the load weight, semi-gantry cranes can be divided into light, medium and heavy-duty, with lifting capacities ranging from hundreds of kilograms to thousands of tons.
عملية مرنة:
There are various operating modes, including manual control, electric control and automatic control, to meet different operating needs.
Carts and trolleys can move along cantilever beams and tracks to achieve flexible handling of loads.
قابلة للتكيف:
Suitable for various indoor and outdoor environments, such as factories, warehouses, docks, etc.
Can work in different climate conditions, such as high temperature, humidity, etc.
آمنة وموثوق بها:
Equipped with a variety of safety protection measures, such as overload protection, limit protection, etc.
Automated control systems improve work accuracy and safety.
2. Application of semi-gantry crane in Tanzania
الموانئ والمحطات:
In Tanzania's ports and terminals, semi-gantry cranes can be used to load and unload bulk cargo such as containers and bulk cargo.
Its strong carrying capacity and operational flexibility can significantly improve loading and unloading efficiency and reduce operating costs.
التصنيع:
In Tanzania's manufacturing industry, semi-gantry cranes are used for material handling, assembly and other tasks on production lines.
Especially in heavy machinery manufacturing, automobile manufacturing and other industries, semi-gantry cranes can play an important role in improving production efficiency.
بناء البنية التحتية:
In infrastructure construction projects in Tanzania, such as bridge construction, road construction, water conservancy project construction, etc., semi-gantry cranes can be used to lift large components, building materials, etc.
Its structural features and operational flexibility enable the crane to operate efficiently in complex construction environments.
صناعة الخدمات اللوجستية:
In Tanzania's logistics centers, warehouses and other places, semi-gantry cranes can be used for loading, unloading, stacking and sorting of goods.
Its easy operation and high efficiency help improve logistics efficiency and reduce operating costs.
الزراعة:
In Tanzania's agricultural sector, semi-gantry cranes can be used for storage, processing and transportation of agricultural products.
For example, in grain warehouses, cranes can be used for grain loading, unloading and stacking operations to improve the efficiency of grain storage and management.
الإطار رافعات جسريةتُعرف الرافعات الجسرية ذات الإطار A أو الرافعات الجسرية خفيفة الوزن أيضًا بأنها مناسبة لمجموعة من التطبيقات. عادةً ما تكون هذه الرافعات الجسرية ذات البوابة الصغيرة لمتطلبات الرفع ذات المهام الخفيفة. يمكن تحريك الرافعات بسهولة في جميع أنحاء مكان العمل وتثبيتها في مكانها عند الحاجة، وذلك بفضل تزويدها بعجلات دوارة ثقيلة الوزن. تُعد هذه الرافعات مثالية لخطوط التجميع وورش العمل وحجرات الخدمة والمواقع المؤقتة.
الميزات:
قطب الخروع عجلة مع الفرامل
جهاز حماية الزائد
مفتاح الحد لمنع الرفع الزائد والخفض الزائد
السلامة القبض على هوك
IP 54 الحماية لجميع المحركات
ضغط على زر قلادة كاملة مع كابل التحكم
مسطحة مرنة نظام كابل اكليل عبر السفر إمدادات الطاقة
A-type gantry cranes, especially double-beam A-type gantry cranes, have shown wide application value in many fields in Tanzania with their high efficiency, stability and flexibility. The following is a specific analysis of the application of A-type gantry cranes in Tanzania:
1. Working characteristics of A-type gantry cranes
هيكل مستقر:
A-type gantry cranes adopt double-beam or single-beam structure, with a stable design and capable of bearing large loads.
The main beam adopts steel structure, which is reasonably designed and calculated to ensure the stability and safety of the crane.
عملية مرنة:
A-type gantry cranes are usually equipped with advanced control systems, which are easy to operate and respond quickly.
The trolley and car of the crane can move along the track to achieve flexible handling and positioning of the load.
قوية القدرة الاستيعابية:
The lifting capacity of A-type gantry cranes ranges from tens of tons to hundreds of tons.
It is suitable for the handling and lifting of large and heavy goods.
قوية القدرة على التكيف:
A-type gantry cranes can be customized according to the specific needs of users, such as lifting weight, span, speed, etc.
Suitable for a variety of indoor and outdoor environments, such as factories, warehouses, docks, railway freight stations, etc.
آمنة وموثوق بها:
Equipped with a variety of safety protection measures, such as overload protection, limit protection, emergency stop, etc.
The driver's cab has a wide field of vision, flexible, stable and comfortable operation, ensuring the safety of operators.
2. Application of A-type gantry cranes in Tanzania
الموانئ والأحواض:
In Tanzania's ports and docks, A-type gantry cranes can be used for loading and unloading of bulk goods such as containers and bulk cargo.
Its strong carrying capacity and operational flexibility can significantly improve loading and unloading efficiency and reduce operating costs.
الصناعة التحويلية:
In Tanzania's manufacturing industry, A-type gantry cranes can be used for material handling, assembly and other tasks on the production line.
Especially in heavy machinery manufacturing, automobile manufacturing, shipbuilding and other industries, A-type gantry cranes can play an important role and improve production efficiency.
بناء البنية التحتية:
In Tanzania's infrastructure construction projects, such as bridge construction, road construction, water conservancy project construction, etc., A-type gantry cranes can be used to hoist large components, building materials, etc.
Its stable structure and strong load-bearing capacity enable the crane to operate efficiently in complex construction environments.
صناعة الخدمات اللوجستية:
In Tanzania's logistics centers, warehouses and other places, A-type gantry cranes can be used for loading, unloading, stacking and sorting of goods.
Its easy operation and high efficiency help improve logistics efficiency and reduce operating costs.
الزراعة:
In Tanzania's agricultural sector, A-type gantry cranes can be used for storage, processing and transportation of agricultural products.
For example, in grain warehouses, cranes can be used for loading, unloading and stacking of grain, improving the efficiency of grain storage and management.
بسيطة المحمول رافعة جسرية يتم تصنيعها من أجل رفع معدات التحميل و التفريغ من المستودع وصيانة المعدات الثقيلة ونقل المواد المطبقة الصغيرة والمتوسطة المصنع. أفضل ميزة الرافعة اومني-اتجاهي movability وسريعة الجمعية, حجم صغير, يمكن نقلها إلى آخر إلا مع السيارة الصغيرة. القدرة 0.25 t-10t ، سبان هو 12m. الفرامل وإذ تضع عجلة العالمي يمكن أن تتحرك على أرض الواقع ، يمكن استخدامها جنبا إلى جنب مع رافعة كهربائية, سلسلة كتلة القطار متحرك, تحقيق رافعة الميكنة, والتي يمكن أن تقلل من القوة البشرية وتكاليف الإنتاج وتحسين كفاءة العمل.
Portable gantry cranes, with their light weight, portability, fast and efficient installation, and high safety, have shown wide application potential in many fields in Tanzania. The following is a specific analysis of the application of portable gantry cranes in Tanzania:
1. Working characteristics of portable gantry cranes
Lightweight and portable:
The portable gantry crane is made of folding structure and lightweight materials (such as aluminum alloy). It is small in size, light in weight, and easy to transport and store.
No large lifting equipment is required, and only a small amount of manpower is needed to easily complete the handling, installation and disassembly.
Fast and efficient installation:
The portable gantry crane is easy to install and does not require complicated construction and debugging processes.
It can be installed in a short time and put into use quickly to improve work efficiency.
سلامة عالية:
The portable gantry crane has a reasonable design, a stable structure, and a variety of safety protection measures (such as overload protection, limit protection, etc.).
It is easy to operate and easy to control, which can ensure safety and reliability during the operation.
قوية القدرة الاستيعابية:
Despite its small size, the portable gantry crane still has a strong carrying capacity and can meet a variety of lifting needs.
قوية القدرة على التكيف:
Portable gantry cranes are suitable for a variety of working environments, such as indoors, outdoors, workshops, warehouses, etc.
It can be customized according to the specific needs of users, such as lifting weight, span, height, etc.
2. Application of portable gantry cranes in Tanzania
الصناعة التحويلية:
In Tanzania's manufacturing industry, portable gantry cranes can be used for material handling, assembly and other tasks on the production line.
Especially in industries such as automobile manufacturing and machinery manufacturing, portable gantry cranes can play an important role in improving production efficiency.
بناء البنية التحتية:
In Tanzania's infrastructure construction projects, such as bridge construction, road construction, and water conservancy project construction, portable gantry cranes can be used to lift small components, building materials, etc.
Its lightweight and portable characteristics enable the crane to operate flexibly in complex construction environments and improve construction efficiency.
صناعة الخدمات اللوجستية:
In Tanzania's logistics centers, warehouses and other places, portable gantry cranes can be used for loading and unloading, stacking and sorting of goods.
Its fast and efficient installation characteristics help improve logistics efficiency and reduce operating costs.
الزراعة:
In the agricultural sector of Tanzania, portable gantry cranes can be used for storage, processing and transportation of agricultural products.
For example, in grain warehouses, cranes can be used for loading and unloading and stacking of grain, improving the efficiency of grain storage and management.
Repair and assembly operations:
Portable gantry cranes have significant advantages in repair and assembly operations. Their light and portable features allow the crane to easily enter narrow spaces for operation.
Portable gantry cranes will play an important role in industrial maintenance, equipment assembly and other fields in Tanzania.
الكهربائية عربة رافعة جسرية هو منتصف ضوء نوع رافعة جسرية, وقد تم تجهيز مع كهربائي رافعة السنانير, مع ملامح واضحة من "L" شكل الساقين ، مما يجعل الرافعة أكثر ملاءمة للتعامل مع البضائع مع طول فترة طويلة ، مثل أنابيب الصلب ، إلخ. رفع القدرة الكهربائية عربة رافعة جسرية 5 إلى 32 طن و الطبقة العاملة هو A5 و A6. المعايير هي كما يلي:
نوع المنتج
L
رفع القدرات
5~32t
Span طول
18~35m
الطبقة العاملة
A5, A6
درجة الحرارة المحيطة
-25~40 ° c
The L-type electric trolley gantry crane has shown wide application potential in many fields in Tanzania with its compact structure, light weight and easy operation. The following is a specific analysis of the application of the L-type electric trolley gantry crane in Tanzania:
1. Working characteristics of the L-type electric trolley gantry crane
Compact structure: The L-type electric trolley gantry crane adopts an L-shaped leg design, with a compact structure and a small footprint, which is convenient for operation in a small space.
Light weight: Compared with other types of gantry cranes, the L-type electric trolley gantry crane has a lighter weight and is easy to move and install.
Easy operation: The L-type electric trolley gantry crane is usually equipped with an electric control system, which is easy to operate and easy to master.
Strong carrying capacity: Despite its small size, the L-type electric trolley gantry crane still has a strong carrying capacity and is suitable for lifting small and medium-sized goods.
Strong adaptability: The L-type electric trolley gantry crane is suitable for a variety of operating environments, such as factories, warehouses, workshops, etc., and can be customized according to the specific needs of users.
2. Application of L-type electric trolley gantry crane in Tanzania
الصناعة التحويلية:
In Tanzania's manufacturing industry, L-type electric trolley gantry crane can be used for material handling, assembly and other tasks on the production line. Its compact structure and light weight enable the crane to operate flexibly beside the production line and improve production efficiency.
إدارة المستودعات:
In Tanzania's warehouses, L-type electric trolley gantry crane can be used for loading, unloading, stacking and sorting of goods. Its easy operation and strong carrying capacity help improve warehouse management efficiency and reduce operating costs.
Maintenance and assembly operations:
In Tanzania's industrial maintenance and assembly operations, L-type electric trolley gantry crane can be used to lift small equipment, parts, etc. Its compact structure and strong adaptability enable the crane to easily enter narrow spaces for operation, improving maintenance and assembly efficiency.
Small engineering projects:
In Tanzania's small engineering projects, L-type electric trolley gantry crane can be used to lift building materials, small components, etc. Its light weight and easy mobility enable the crane to operate flexibly in complex construction environments and improve construction efficiency.
أنواع مختلفة من الرافعات العملاقة التي تباع من الصين إلى تنزانيا
ورشة عمل الرافعات نصف العملاقة للبيع في تنزانيا
يرفع وزن: 6 طن
رفع الارتفاع: 8 متر
العمر: 15 متر
العمل الجهد: 380/3/50
السكك الحديدية محمولة منخفضة رئيس غرفة 5t Lh رافعة جسرية للبيع في تنزانيا
رفع الوزن: 5 طن
رفع الارتفاع: 8 متر
العمر: 10 متر
العمل الجهد: 380/3/50
الصغيرة المحمولة Rackless ورشة عمل متنقلة 3 طن ارتفاع قابل للتعديل رافعة جسرية للبيع في تنزانيا
رفع الوزن: 3 أطنان
رفع الارتفاع: 5 متر
العمر: 7 متر
العمل الجهد: 380/3/50
الصناعية 1 طن المحمول البسيطة رافعة جسرية للبيع في تنزانيا
رفع الوزن: 1 طن
رفع الارتفاع: 6 متر
العمر: 10 متر
العمل الجهد: 380/3/50
ملغ مزدوجة العارضة رافعة جسرية مع الرافعة الكهربائية وربط للبيع في تنزانيا
رفع الوزن: 10 طن
رفع الارتفاع: 6 متر
العمر: 15 متر
العمل الجهد: 380/3/50
كيفية تخصيص رافعة جسرية من الصين
نحن رافعة مصنع يقع في الصين ، توفير رافعة خدمات التخصيص العالمية رافعة العملاء. إذا كنت ترغب في تخصيص رافعة جسرية, يمكنك ترك رسالة على الموقع أو البريد الإلكتروني: sales010@cranesdq.comقل لنا المعلومات التالية ، مدير المبيعات لدينا بالاتصال بك:
رفع السعة (طن): __ ?( السعة)
رفع الارتفاع (م):__ ? (الطول من ربط مركز الأرض)
Span (م): __ ? (المسافة بين مركز السكك الحديدية)
سرعة رفع (م/دقيقة): __ ? ( مفردة ، مزدوجة ، متغير)
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