ASME B16.5  法兰盖 BL 22"-2500 FF0aFS5 RJ0SJ�FS10R@R4Sc2@RF@443

BL 22"-2500 FF0aFS5 RJ0SJ�FS10R@R4Sc2@RF@443

SO 5"-150 RF

WN20"-300 LT Sch40 FF5RF2@F9@RF689J@p

SW 14"-150 LFMR4Sc2@RF@443

LJ 18"-600 LG40Sc2@RF@4439

WN100()-63RFbb

BL 1"-300 RJ5 RJj@5c2@RF

WN 300(B)-25 RF S=8

WN 3&quo