HG/T 20592  法兰 WN 25-25 RF M=85rf t0rf s=7115 HG/CH rf/0 RF B=7c210

WN25A-25RF M=85rf t0rf s=7115 HG/CH rf/0 RF B=7c210

BL450-600 RF�F b=51ampF100-sch161505-1=4 RFR RFFFR100F fFhA=32-10r1=161D=0 H

bl200-300 RF S2-450 RFM0RF2009/F=8

WN350-16RF S=7.1fm.h0pa

JWN 100×150-150 RF S=3.5

WN 3 1/2"-2500 RJ Sch80

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