HG/T 20592  法兰 WN 350(B)-63 FM

WN350(B)-63 FM

WN 25-25 RF S=6

WN 3"-150 RF Sch80S

WN 32(B)-40 RF S=4 A=42.4

wn600a)-16 rf s=640S0253u0M30

DN300-PN6 PL RF Ⅱ C=20

WN 25(B)-25 RF S=6

PL 300(B)-6 RF

HP-2

SO80(B)-16 RF b=4 d=136Sc=21 2600-1.6RF Sch40S RFbh4F@�c8rH=251-300 RFp