法兰 PL 80(B)-16 RF b==3.50F16d=

PL80(B)-16 RF b==3.50F16d=

wn50-900rf sch40-16 rf B=3B)-16 RF/

WN20-150Rfb)-63 fmH30 δ4.0CH00-1.

BL500(B)-10 RF=6S0S01(B)-1500RF)-16RF S=/21.0S00-

LWN125-300FM H=2.50RF ff0 RF0

WN 150-900 RJa2/u

HG/T20615 WN250-600 RF S=20 H1=10

WN15b-40fmFF0 R

WN6