- butterfly valve
- 2017-01-14 13:51
- PTFE seat butterfly vlaveWe are professional manufacturer forductile iron butterfly,gate,globeand check valve. standard
- ductile iron gate valve
- 2017-01-14 13:51
- We are professional manufacturer forductile iron butterfly,gate,globeand check valve. standard :DIN,BS,JIS ,ANSI,GB.our