HG/T 20592  法兰 WN 200-63 RF B=Sch40S

wn200a-63rf B=Sch40S

WN 450(B)-40 RF=600-0F=165F60

3 RF 500-1.0 δ00-0.0J(F 52/ RRFG

3 M 1300-1.65Sch50k2 R40SG

3 M 400-6.4-1274rjS=NPT H= b

3 RF 500-1.020

3 RF 500-6.4B16520F b50C=0040SF Hrg00 r

3 RF 2200-0.6 δ0=12

3 RF 600-1.0m5cch47i-16FF1603FM=