HG/T 20592  法兰盖 BL 80-16 RF d=45.6/56-

BL80-16 RF d=45.6/56-

wn125-40mRF0)165��.38�

WN 50-150 RF Sch40S

PL40(b)-16FF=3Jf-F1000

PL600(B)-2.5RF BB=2250

WN 100(B)-25 RF S=4.5

WN 32(B)-25 FM S=4.5

PL 50(B)-16 RF050B00pamQ NUL.0F1F534(B0 s0680045MBL150

SO 1/2"-900 RF

WN50(B)-10FM80S