HG/T 20592  法兰 WN 50-10 RFwn=40RFfg/f3=3

wn50-10rfwn=40RFfg/f3=3

bL500(B)-25Mso1CH120F6.3918l=1

WN 25-16 RF SCH

bl 80(b)-10rf 未=41

WN 80 -150 RFFF3f1FFN=48 B=2

SO 125-40 RF

SO 25-300 RF´=17ch80 s=5.086 RF

WN 100-150 RF B=10 rf.009 S-150-150RF RF60RF)

wn200(a)-16 rf s=4h40am

bl125(B)