一般结构用钢和焊接结构钢用在建筑钢结构，桥梁，船舶和汽车。
General structural steel and welding structural steel are used in the construction of steel structures, Bridges, ships and automobiles.
一般结构用钢和焊接结构钢用在建筑钢结构，桥梁，船舶和汽车。
General structural steel and welding structural steel are used in the construction of steel structures, Bridges, ships and automobiles.
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