How much I-beam should be used to make a gantry crane with a span of 7 meters and a load of 5T: the type of I-beam should be selected: 32-45C, and the...
The larger the I-beam model, the more durable it is. The 1 tấn cổng trục uses No. 16 I-beam, the 2 tấn cổng trục uses No. 22 I-beam, and the 3 t...
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