HG/T 20592  法兰 PL 100(B)-25 RFc��@4 S=10 /Cžå žé ©

PL 100(B)-25 RFc��@4 S=10 /Cžå žé ©

PL200B-25RF

WN 1"-150 RF Sch40S

SO 80-150 RF

WN 1"-300 RF Sch160

SO150(B)-6 RF C=303B)-16 RF Schf0-1655S= RFfh40sRF bh313

WN100-300 RF Sch480FF RFf

WN50-300RJ H1=12234-

WN300-16GH=2rfrfF S)

so 15