法兰 BL 50-40 MM S=5FM0615 S=540 RF S

bl50-40mM S=5FM0615 S=540 RF S

WN500-300 mf0 RFFf.hgcaSCH10SRF4hh83=3)-16SS B=92

PL100B-10FF60smp0RFF° so 40-150 rf D=1295 D1=1240

JWN 50×80(B)-16 RF S=4/

WN150(B)-40 RF s=20 Sch160F00am1m/

NB/T 47021 FM400-1.=1-0-00 RF¯

BL 50-150 RF-16

JWN 20×