GB/T 12459  弯头 DN 600-Ⅱ-1490EL6RF0-

DN 600-Ⅱ-14 90EL6RF0-

WN150A-300RFsFFB=20.3RF

WN 4"-150 RF Sch40S

wn32(b)-160fm110 Hs3

WN 600-150 RF Sch40S

wn50(b)-63rfs5(B)-

wn350-300 ff RF.5 &

WN15(B)-160RF20/0 RJ S

DN100-PN10 PL RF Ⅱ

47023 FM450-1.6/45-p0Srf09 W5F0 RF Sch80S2=294 B=38;