GB/T 12459  等径三通 DN 400-12.7TS00rfa21e/=4

DN 400-12.7 TS00rfa21e/=4

PL 150-25 RFamf9S0 RFh40 RF/ 700

WN 100-150 RF Sch80

WN15-16 g s＝3

BL500 -6RF150 RF00Fh-16c

wn50(A)-16RFSCH40S0(b)-25

PL 20(B)-16 RF RF FM SF-1.0/RF Sc

20592so500b-16rfRF0@0FTfch40= S25 m c-120fmh2

3 FM 550-1/100-

3 FM 400