| 1. | Welded steel tubes for low and medium pressure boiler 低中压锅炉用电焊钢管 |
| 2. | Cutter adapters ' design of facing weld steel tubes 焊管端面加工刀盘设计初探 |
| 3. | The cutter adapters design of facing weld steel tubes 平头机刀盘的设计 |
| 4. | Welded steel tube for water pump of deep well 深井水泵用电焊钢管 |
| 5. | Bending radii for seamless and welded steel tubes ; design sheet 无缝和焊接钢管的弯曲半径.设计图表 |
| 6. | Welded steel tubes for heat - exchanger 换热器用焊接钢管 |
| 7. | Seamless and welded steel tubes . dimensions and masses per unit length 无缝钢管和焊接钢管.尺寸及单位长度质量 |
| 8. | Seamless and welded steel tubes - dimensions and masses per unit length 无缝和焊接钢管.尺寸和每单位长度的质量 |
| 9. | Seamless and welded steel tubes - general tables of dimensions and masses per unit length 无缝和焊接钢管.单位尺寸和重量的通用表格 |
| 10. | Welded steel tubes for pressure purposes - technical delivery conditions - stainless steel tubes 压力用途焊接钢管.交货技术条件.不锈钢管 |