HG/T 20592  法兰 WN 50-40 RFA=159 BRFSrf2RHG/060LFRF

WN50-40RFA=159 BRFSrf2RHG/060LFRF

SW20-100MCH80-t/u0 RFF2.

SO200-150 RF

PL 50(B)-10 RF

LWN100-150 RF Sch40

WN 250-2500 RF Sch160

WN 1/2"-300 RF Sch40

SO 80(B)-16RF=4.5h80 B2=3430¦â0592-1b)-16 rf-1663F A=160-2.r

WN 500(B)-25 RF S=12

2 A310 sb