The weight of steel for crane beam has a great proportion in the total amount consumed in the construction of the heavy-duty plant with large-tonnage cranes.

在设有大吨位吊车系统的重型厂房中，吊车梁用钢量所占比例较大，对吊车梁的优化设计对工程造价影响很大，大跨多跨重型厂房吊车梁宜采用突缘变截面简支结构。

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In case that the weight and volume of shipment exceed the tonnage control, Party a has no responsibility for the delay arising from it.

货物体积、重量超出吨控预定，导致发运延误，甲方不承担责任。

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The problem that needs to be solved is to provide a small tonnage forklift controllable fork having simple structure, light weight and automatic lubrication function.

所要解决的问题是：提供一种结构简单、重量轻、具有自润滑功能的小吨位叉车调距叉。

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