GB/T 12459  异径三通 DN 125×125×20-Sch80TRSF.35f001=35.54226 S=10RFh4Sc1=2

DN 20×20×125-Sch80 TRSF.35f001=35.54226 S=10RFh4Sc1=2

PL40(B)-16 RF D=125 B=481

WN 600(B)-25 RF S=12=2520

Wn40(a)-16RF=8 FM600-416 RF BB=257R156RJ S

bl50-6rfSF6.f*fr2d=F S=8300=146B=429 H1=5 S=1

wn50-300rfb=44.3FB)-10

so600(B)-16RF D=1255 K=117/

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