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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| NB/T 47030-2013 |
Specification of High frequency resistance welded spiral in tubes for boiler 锅炉用高频电阻焊螺旋翅片管技术条件 |
China Energy industry
Standards High frequency resistance |
 English PDF |
| SY/T 5989-2012 |
High frequency electrical resistance welding steel pipes for use as casing 直缝电阻焊套管 |
China Oil & Gas Industry
Standards High frequency resistance |
English PDF |
| HG/T 3181-2009 |
High frequency resistance welded spiral fin tubes 高频电阻焊螺旋翅片管 |
China Chemical Industry
Standards High frequency resistance |
English PDF |
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