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。
Caigang processing, marketing, structural steelwork Housing production; General mechanical design, manufacturing, maintenance; steel sales.
彩钢加工，销售，钢结构房制作；普通机械设计，制造，维修；钢材销售。
This steel includes general machine structural steel, alloy steel and steel for tools and used for various machine parts.
这种钢包括一般机械结构钢，合金结构钢和工具钢，并用于各种机械零件。
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