HG/T 20592  法兰 WN 1000(B)-100 T S=4.

WN 1000(B)-100 T S=4.

WN300(B)-16 FM C=48 H=98 S=72

wn80(b)-63rfs16RFfmu007Fb=50h40=4PL10S=/0)-0R1190ampampfrf11 RF RF16

3 M 600-2.5 δ0=12 H=120 h=45

BL50 -150 RF

WN20(B)-10 RF

LWN 4"-150 RF Sch160

WN 150-300 RF S=10.97

BⅠ 750-S.6/fof1F00cFR