HG/T 20592  法兰 WN 700(B)-16 RF S=7.

WN 700(B)-16 RF S=7.

PL 80(B)-10 RF B=78

WN 500-1500 RJ B=456

WN200-150 RF s=30RFN15

WN 40-150 RF6 RF66 RF4/Fs

WN60-40M5ch60=327.3‚â¼ã¢â

so300(a)-16rfBL20ampa

WN15-150 RF Sch40S-

SO 15(B)-25 M

WN150(B)-160 RJ S==00(b)-100pampampampampamp;ampam