HG/T 20592  法兰 WN 800(B)-10 FF6S8rf40 RS0-150 rf RF S=1290E’�

WN800B-10FF6S8rf40 RS0-150 rf RF S=1290E’�

47022 m 700-1.605c/0120SF=195/�

WN50(B)-100RF N=

SO25-25Gb)-16r

PL1600(B)-16 RF0

wn100-150 rf-=30FT B=10

bWN900-150 RF702pampampam

wn300b-63 rf

wn125b-25rf�s=65 B=5=24fh4

SO 40-150 RF TURFa)-1jr/10 r