NB/T 47022  法兰 C-RF 800-1.6SRF S/H=4

2 CRF 800-1.60SRF S/H=4

WN25-150RF�10-

WN 50-150 RF8=3.5F0RcRF5ff d=158æ°´çh

lwn20-300 rf s

SO 2"-150 RF300fmG/10-

PL500-10RFch40sc

PL100B-16Rf600 fm1200-6 RF/

WN 150-150 RF Sch40S(.05

bl600-300mc=43rq.pn16rft=

BL65-10 FF�¢Ã¢�