HG/T 20615  法兰 WN 100-300 RF-50�0s4Sj@5@1510 RF@w5@RF

WN100()-300RF-50�0s4Sj@5@1510 RF@w5@RF

PL 25(A)-10 RF

PL150(A)-16 RF b=3

WN8-150RF0400-6=45/5

WN 10(B)-10 FF S=3

WN65-16 RF Sch40

PL 150(A)-10 RF

wn65A-16RF2.5Rch6/39

PL 600(B)-10 RF

WN 1"-300 LT Sch40S��0S9cT2009 SM0-F S7.5�¦�0 LT Sch40St;