GB/T 12459  等径三通 DN 15-6TSfF0-  thr����@RF@4 R

DN 15-6 TSfF0-  thr����@RF@4 R

WN 65(B)-16 RF�JsRF@F S��3F

WN 1400-150 RF B

BL 300-16 MSc

PL 30(B)-6 RF

Pl 550-16 RF6SWN150

WN 40(B)-40 RF..0235A2@R5F5RFF040S5F@RF

bl50-150rf sch40T-135Mu2.5 RJ-R-1pampampam40 G=1@RF@

pl80-16m AA

WN 500