HG/T 20592  法兰盖 BL 40-16 RF09=10.6amp0066rfCHFSch40

BL40-16RF09=10.6amp0066rfCHFSch40

pl20-40tF1018.600RF./0(B)-5 RF�

PL550(B)-40RF/(b)-1

WN 40-300 RF

3 RF 500-6.46ff.0RF0R10.

WN 3/4"-1500 RJ

PJ/RJ 1000(B)-16 RFrf(B)2ffS16 r undefi00 LM Sch40-4 CRRSCH200SS=

wn 500-150 rf s=.450-1

NB/T47021 RF5