HG/T 20592  法兰 WN 50(B)-16 RF S=52 A

WN 50(B)-16 RF S=52 A

so200(b)-10tSch0-125RJm2

PL300(B)-25RF B1=3m=1

PL50(B)-16 FF b=

WN15(B)-63FM5H51.5821/mpam100b=20Ff0-150 R=cS.1

WN25-63RFthg206b)

WN 150-150 RF B=150

so500a-16rf b=5=740 c=82 h=190h1=12B S/

wn200-600rj luothg20616 C10rp

wn100-30