法兰 WN 50-16 G0rf50RFN65=1

WN50(A)-16G0rf50RFN65=1

wn40(b)-40 rf 45*30F3 B= h=

WN100-300 RF Sch40

WN 3"-300 RF Sch80

WN50-300 RF B＝49.10S4-600 R0-

wn20b-600rj(b

WN100-600 RF

WN50(B)-100 fmu00a6/u0

PL80B-2.5FFgRFHB)-16 RF1 d=12

wn40(b)-40 rf 45*30F3 B= h= C=3e5/u0

bl 300