HG/T 20592  法兰 WN 1200(B)-16 RF,S=12.5 H=190 C=100

WN1200(B)-16RF,S=12.5 H=190 C=100

A WN 38"-150 RF�ز–ر‍ذ ز’ذ ذ†ذ²ز–ر‍ذ²ز–â�

SO 250(B)-10 RF.6-11509 RJ Sch120f0hg/t0 R2f s H=11060f2A166560ذ آ 

pl500(A)-16RF RFam16RF6R061.5 &0EShrf1= rf s H=11060f2A1665

WN 2