HG/T 20592  法兰 PL 600(B)-6 FF A=2hg

pl600b-6ff A=2hg

WN250-300 rF Sch40 H=115

PL300(B)-16 RF S=4

SO 150-16 RF.8 H=3201.6

wn250-600 rf sch320

PL100(B)-16 RF0h40=

47022 fm500-2.5-c.0-15

WN 80-300 RF Sch10S S=2.77

wn25-900rfsch405or.sch160

wn100-25rf s=1/ b RJ Sch2SCb=F-1pamp5 RJ RRF-1651