GB/T 12459  异径三通 DN 500×500×65-Sch160TR

DN 500×500×65-Sch160 TR

pl100-16 rf b=3 f1=0-1.032R

pl400-10RF-1.0/=1ƒ10516 rf b16RFRforum.h

WN80(B)-16t0-600 RF Sc325 M/A-150RF00RJ0.6sch8

so32(b)-25 fm s=4 700f/@200-4f01S1FF

wn150(B)-16 TFm6F

SO450B-10 RF　S=8

47023m700-1.6dn=600δ=64

wn15-