HG/T 20592  法兰 WN 450-160 RFFF6

WN450-160 RFFF6

B BL 10"-2500 SFM

B WN 6"-400 ST

WN 700-150 RF

WN150-150 RF0.H

BL RF 20K 25A RJ-6=3/4&amp HG/b)Ш°Шҹ

SOP RF 10K 80A

BL150-150 RF L=3/4&ampamp;ampamp;amp;amp;amp;amp;ampampampquot

LWN250-300 RF Sch60 H=284

PL200(B)