GB/T 12459  弯头 DN 50-Ⅱ-590EL0i65RFB)-6 r

DN 50-Ⅱ-5 90EL0i65RFB)-6 r

so 200-150rf9 sch R65RFB)-6 rf6/56-1

pl80(B)-6RF)-1ch40 RTJ RJ0592 FM16 rf0RF0 r

PL100 -6RFFMhXS1.6oru-25-32sch60G4012 RJ.

1 FM 400-1.0 δs=8-6267

wn80-16rf f1=2.5 s=

WN40(B)-63M S=3.5550-1.6H80

pl300-16RF1=/)-16RF-120R

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