GB/T 12459  弯头 DN 80×50-490ELR15-2

DN 80×50-4 90ELR15-2

WN 40-300 RF-0.3�3010

47022 fm500-2.5-

WN 150(B)-63 FM S=7

WN25-2500 RF δ12 RFRF6RFRF25RFF Sch40SRF 120=12δ0=1

WN25-150RF S=1RJ)-n=

WN100(B)-16RF1m12cn r0TF1ch.6

bl20-100 fm

WN150-150 RF A7ŒS=40 N=106 A=70 S=1RF

WN100-150