HG/T 20592  法兰 PL 450(B)-6 FM9╨Àk82-15/ 2/ L=25=1

pl450(B)-6FM9╨Àk82-15/ 2/ L=25=1

WN 50(B)-63 RJ S=600rj5 R

Bl250-16 RF)-16FF1603 1P1.0 RF--16f

WN600-40RF S=12F1500-2.52

WN20-150 RF S=2.5 b=2.3S H=4

LWN15-300 RFSC=3.616rf0RF S=4

WN40-63RF,Sch40 MFmfRFFRFrF SC

WN150-100 RF S=6

WN125(B)-40 RF

SO