HG/T 20592  法兰 WN 300-63 M C=54

WN 300-63 M C=54

SO500(B)-16 RF3/00 RF Sch

SO 500-300 RF350-6r RF b=6h

SSO500-16FF100M0R/649 f1=3 BB

LWN50-300 RFRF-25RF RF ط®آ´=60 H=1200cF

WN 25(B)-16 RF S=5-F-10uotH0-

SO 32-150 RF

pl100-16rfb1=490-1200/0RFF090300 RF50-1401./MBp0RJ5f)-

WN200-