ASTM A182 F51

Shinjo Company focuses on manufacturing valves and pumps, including ball valves, check valves, gate valves, globe valves, butterfly valves, safety valves, hydraulic control valves, pressure reducing valves, needle valves, cast steel valves and diaphragm pumps, split case pumps, centrifugal pumps, multistage pumps, submersible pumps, etc.