双法兰球阀 double flange ball valve
国标 (gb) | 编号 | ug972sp | ug973sp | ug974sp | ug975sp | ug976sp | ug977sp | ug978sp | ug979sp | ug980sp |
规格 | 20 | 25 | 32 | 40 | 50 | 63 | 75 | 90 | 110 | |
日标 （jis) | 编号 | 972sp | 973sp | 974sp | 975sp | 976sp | 977sp | 978sp | 979sp | 980sp |
规格 | 1/2″ | 3/4″ | 1″ | 1-1/4″ | 1-1/2″ | 2″ | 2-1/2″ | 3″ | 4″ | |
美标 （astm) | 编号 | scf972sp | scf973sp | scf974sp | scf975sp | scf976sp | scf977sp | scf978sp | scf979sp | scf980sp |
规格 | 1/2″ | 3/4″ | 1″ | 1-1/4″ | 1-1/2″ | 2″ | 2-1/2″ | 3″ | 4″ |