| 1. | Steel pipe welding neck flanges with male and female face 凹凸面对焊钢制管法兰 |
| 2. | Steel pipe welding neck flanges with tongue and groove face 榫槽面对焊钢制管法兰 |
| 3. | Steel pipe welding neck flanges with ring - joint face 环连接面对焊钢制管法兰 |
| 4. | Steel pipe welding neck flanges with flat face or raised face 平面突面对焊钢制管法兰 |
| 5. | Loose plate steel flanges with copper alloy welding neck collar 铜合金对焊环松套板式钢法兰 |
| 6. | Welding necks of cuni10fe1 , 6mn - technical specifications Cuni10fe1 . 6mn焊接轴颈.交货技术要求 |
| 7. | Welding neck flanges ; nominal pressure 320 焊颈法兰.标称压力320 |
| 8. | Welding neck flanges ; nominal pressure 160 焊颈法兰.标称压力160 |
| 9. | Welding neck flanges , nominal pressure 400 焊颈法兰.标称压力400 |
| 10. | Welding neck flanges ; nominal pressure 250 焊颈法兰.标称压力250 |