这是用于起重机的高强结构钢。

This is a high strength structural steel for the crane.

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注高强度结构钢以下简称高强钢。

Note: The high strength structure steel hereafter referred to as high strength steel.

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注高强度结构钢以下简称高强钢。

Note: The high strength structure steel hereafter referred to as high strength steel.

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