HG/T 20592  法兰 PJ/SE 80(B)-16 RF S=4

PJ/SE 80(B)-16 RF S=4

PJ/SE 65(B)-16 RF S=4

WN65(B)-40 RF S=≥4

BL350-10 RF0-FFOb40r50RFn50-150rf

WN100(B)-10 RFB)-10RF RF b=7ch8063)-CH8h40sch40F8160h40S3 S=103/u0

WN 100-150 RF

SO 400(B)-16 RF

wn600-900rfsch402000 pl200Î0 D=990 K=9RFH=9990(B)-250