2″ SDR7 Ductile Iron Backup ring
2″ SDR7, IPS, Ductile Iron Rings for HDPE pipe adaptor
4″ Backup rings, SDR7
Ductile Iron Rings, ductile iron flange, also named as convert flange. it’s used for HDPE pipe adaptor
Chinese Pipe Fittings, Tube Valves and Steel Flanges
Professional supplier of pipe fittings, valves and flanges in China.
ductile iron backup flange