HG/T 20592  法兰 PL 200(B)-16 RFb1=161c=2兰内径b1b1a

pl200(b)-16rfb1=161c=2兰内径b1b1a

SO 600(B)-10 RF0RF Sch10 S=2.774.5B)-2F Sch10S�77.5 RJ FMcFNF5L RF ⅡFLF6 RFRr1n800F25RF Sch10S�77

2 C6RF scâ@WN-.a4/u00c40SP8B-6h1 shc4H40 H-563.5-16)=sTB)10 δ1Sch4F@H RF Sc0-300 RJ B=538

wn200b)-160ms

NB/