| 1. | Steel pipe blank flanges with flat face or raised face
平面突面钢制管法兰盖 |
| 2. | Steel pipe blank flanges with tongue and groove face
榫槽面钢制管法兰盖 |
| 3. | Steel pipe blank flanges with male and female face
凹凸面钢制管法兰盖 |
| 4. | Steel pipe blank flanges with ring - joint face
环连接面钢制管法兰盖 |
| 5. | Specification for p3 . 0mpa blank flanges
P3 . 0mpa盲板法兰规范 |
| 6. | Cast iron pipe blank flanges
铸铁管法兰盖 |
| 7. | Copper alloy blank flanges
铜合金法兰盖 |
| 8. | Blank flanges with stainless steel facing , of nominal sizes dn 125 to dn 500 and pn designations pn 10 to pn 40
公称尺寸dn125至dn500 pn标示pn10至40的带不锈钢面 |
