GB/T 12459  弯头 DN 20-390EL3 b=316-3-1F

DN 20-3 90EL3 b=316-3-1F

PL40-16RFH45

LWN50-300 RF=8/

wn65-16mfm

SO 150-150 RF

WN100-300FM H=/ rfS00-1.0 δ=60

WN200(B)-100RF S=

wn15-160gp625M-

BL 300-10 RF

BL 200(B)-25 RF4.02.7 d=5801.6 δ=70 H=16LA150 RF0620δ0=9-2.54702m50-16RF0Rfmf=809RFHG/F3c1