HG/T 20592  法兰 SW 25(B)-16 RF0)�Т»Ba) G Sch40SF5 RF/Sc

SW25B-16RF0)�Т»Ba) G Sch40SF5 RF/Sc

LWN 80-2500 RJ Sch80 Sch40 Sch40ch800F Sch400ta3/u0FM0 RF

Lwn25-300 rf 1-1.0 أ

PL1200(B)-10 RF°wn80-300 rf sch8

SO 40-150 RF60FM2200-2.540

SO 400-150 G00 RF Sch40S4612005=152

SO125-16FF4180EFshlcF BR1 b0 RF-1