HG/T 20592  法兰盖 BL 250(B)-10 RF B60-150 RF510H=2F=0-164704F1592�FO RF

BL250(B)-10RF B60-150 RF510H=2F=0-164704F1592�FO RF

WN 1"-300 RF Sch40S

BL 65-16 FF2 RF RF S=3RF S.51 BRF S=2(B)-10 RF1F S=2

BL 400-16 RF

SOP FF 5K 15A

SO 1"-150 RF Sch40S

BL40(B)-150RF180 f1=0-1b=27h

WN600B-150RF4Kf,sd=50

WN15(B)-160RFam