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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 37775-2019 |
Heavy Steel open die forgings—General technical specification 大型钢质自由锻件 通用技术规范 |
China National Standards Steel open die |
 English PDF |
| GB/T 33216-2016 |
Steel open die forgings on hammer—Classification of complexity and equivalent coefficient 锤上钢质自由锻件 复杂程度分类及折合系数 |
China National Standards Steel open die |
English PDF |
| GB/T 33212-2016 |
Steel open die forgings on hammer—General specifications 锤上钢质自由锻件 通用技术条件 |
China National Standards Steel open die |
English PDF |
| GB/T 25136-2010 |
General checking standard for Steel open die forgings 钢质自由锻件检验通用规则 |
China National Standards Steel open die |
English PDF |
| GB/T 21471-2008 |
Machining allowances and tolerances for Steel open die forgings on hammer - Shafts 锤上钢质自由锻件机械加工余量与公差 轴类 |
China National Standards Steel open die |
English PDF |
| GB/T 21470-2008 |
Machining allowances and tolerances for Steel open die forgings on hammer - Disks, columns, rings and seamless cylindrical sleeves 锤上钢质自由锻件机械加工余量与公差 盘、柱、环、筒类 |
China National Standards Steel open die |
English PDF |
| GB/T 21469-2008 |
Machining allowances and tolerances for Steel open die forgings on hammer - General requirement 锤上钢质自由锻件机械加工余量与公差 一般要求 |
China National Standards Steel open die |
English PDF |
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