| 1. | Cold - drawn or cold - rolled precision seamless steel tubes
冷拔或冷轧精密无缝钢管 |
| 2. | Seamless steel tubes standard use diamond core dvilling
金刚石岩心钻探用无缝钢管 |
| 3. | Seamless steel tubes standard use diamond core drilling
金刚石岩心钻探用无缝钢管 |
| 4. | Seamless steel tubes for low and medium pressure boiler
低中压锅炉用无缝钢管 |
| 5. | Cold - drawn or rolled precision seamless steel tubes
冷拔或冷轧精密无缝钢管 |
| 6. | Seamless steel tubes for low - temperature - service piping
低温管道用无缝钢管 |
| 7. | Seamless steel tubes for dynamic loads - design rules
承受动态载荷的无缝钢管.设计规则 |
| 8. | High - pressure seamless steel tubes for diesel engine
柴油机用高压无缝钢管 |
| 9. | Stainless steel small diameter seamless steel tubes
不锈钢小直径无缝钢管 |
| 10. | Seamless steel tubes for low and medium pressure
低中压锅炉用无缝钢管 |
