HG/T 20592  法兰 PL 40(B)-16 FF c=12 a

pl40(b)-16 ff c=12 a

3 RF 1100-4.0 δ0=81

wn400-600rj sch600- H187-

LWN 400-300 RF Sch40 H=250

WN 50-150 RF0mpampampampne5Rampa

BL65-900FF.--.000- RF/�

WN500-300 RF B=476rj36.300-19Fr6 RF4 b==65-

WN50-63RJ603II 1

HG 20592-2009 pl500(b)-10 rf d=535