- wn flange
- 2016-10-24 15:18
- Flangessteel flangeswn flangewelding neck flangestainless steel flanges
- lift check valve
- 2016-10-22 19:18
- Connecting format: Clamp , screws,flange Execution standard:GB,API,JIS,DINTechnical parameters: DN:DN15-DN1200 PN:PN6-PN