HG/T 20592  法兰 PL 25-6 RFFRFF=75 RF

PL25(a)-6RFFRFF=75 RF

SO80-150 RF

PL65(B)-16RF0f sch40212.1-h20 RF S

WN 600-150 RF S=12

WN 80-150 RF,S=7.62

PL65(B)-6RFFc=14 l=15.25RF5=15RF RF Sch1

SO 125(B)-25 RF S=800Ã

WN 25(B)-16 RF

SO 20-150 RF.50-1¶é¡/130-28055(b)-δ=68 H=1706

SO 450-150 R