GB/T 9124.1  法兰 DN850-PN6 PL RF Ⅰ 0 RF SC

DN850-PN6 PL RF0 RF SC

WN 15(B)-63 M

pl250(b)-10rf hg/t21633-1991tml0S/u00aFFf�

wn25(a)-16mff s=5.5RF15-2500r

WN900(A)-10 RF

WN500(B)-40 RF A=542

WN 150-40 RF Sch60�F3cla

SO50(B)-150 RF9660 rj s=40

WN80(B)-16 RF S=5RFch40Jrf”217.5 RJj@5c2

DN40/