SS 1267 Ed. 2 (1983)被替代
Fittings For Piping - Stop-check Valves For Pn 16 And Pn 10 - Angle Globe Valves Of Cast Iron With Flanged Ends, Spring-loaded Disk, Rising Stem And Sealing Surfaces Of Cu-alloy Resistant To Sea Water
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
