GB/T 12459  等径三通 DN 350-Ⅱ-6TS

DN 350-Ⅱ-6 TS

BL25-900rfmpamp/ampftF0

wn 65-150 rf

DN 50-Sch80S TS

DN32/PN40/05A

PL 250(B)-16 RF0

PL25(B)-16 rF

WN100B-40RF S=5

wn50(b)-600G

WN 50B-40 RFF RF)-40 RF Ⅱ K=Sc0(b�ï�0=445 k=30000-/F1S=8s=82)-10RF=60/70-01�0RF S B=Sch80S×150-Ⅱ-