HG/T 20592  法兰 PL 600-10 RF-m-

pl600a-10rf-m-

SO 200(B)-40 rf

SO 50-63 RFБrum.htmF1100e2/u0082F15/50-6ru-016 rf12 FM 700-

PL250-6RF150 RF RF S/asm-mpampaF Sch8

WN 250(B)- 25RFff0/60

bl450-600 rfrf8 10/S LFM16 RF

WN15-25M（Bjzuhk

WN300-16MD=250f0RF S/r

DN25-Class900 WN RF Sch80S