SIS SS 1274-1983 Fittings for piping - Check valves for PN 16- Straight globe valves of cast iron with flanged ends. spring-loaded disk and sealing surfaces of stainless steel
1983SIS SS 1274-1983 Fittings for piping - Check valves for PN 16- Straight globe valves of cast iron with flanged ends. spring-loaded disk and sealing surfaces of stainless steel