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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 33968-2017 |
Hot rolled steel sections with improved weldability 改善焊接性能热轧型钢 |
China National Standards Hot rolled improved |
 English PDF |
| GB/T 32977-2016 |
Hot rolled improved corrosion resisting steel sections 改善耐蚀性能热轧型钢 |
China National Standards Hot rolled improved |
English PDF |
| GB/T 31922-2015 |
Hot-rolled steel sheets and strips of higher yield strength with improved formability 改善成形性热轧高屈服强度钢板和钢带 |
China National Standards Hot rolled improved |
English PDF |
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