SIS SS 1273-1983 Fittings for piping - Check valves for PN 16 — Angle globe valves of cast iron with flanged ends, spring-loaded disk and sealing surfaces of Cu-alloy resistant to sea water
1983SIS SS 1273-1983 Fittings for piping - Check valves for PN 16 — Angle globe valves of cast iron with flanged ends, spring-loaded disk and sealing surfaces of Cu-alloy resistant to sea water