HG/T 20592  法兰 WN 100(B)-25 M S=10

WN 100(B)-25 M S=10

NB/T47023 FM1200-1.0

WN200-25RF A=219 B=205

bL250(B)-25 RF0G/F16

WN 150(B)-16 RF

LP-1

3 FM 300-1.6 δ0=8

WN 80(B)-16 RF S=60 S=rfd=10&amMch40

SO 250B-10 RF

PL 125(B)-10 FFg20615 wn350-43RF@AFF ScF&@RJ=4ch40Sch40 RF.6 RF SchF-16 R