GB/T 12459  弯头 DN 40-Sch80S90ES0R0

DN 40-Sch80S 90ES0R0

WN250-150RF 7003.5 Sch4

WN 300-300 RF.6ww.h

wn100-1500 ff-4)-16 R

PL 80(A)-16 RF b

BL125-16 T0c3LJSch10S7

bl100(b)-25rf480S6RF0-05so80(b)-16rfh40SFRF BB=205-10RF=12540=4

BL250-10RF.0000(b)-)-16rf=28540RFr4500 RJ106=70

WN500-60