GB/T 12459  异径三通 DN 900×900×40-Sch30TRTR S t H-4p s=

DN 40×40×900-Sch30 TRTR S t H-4p s=

WN150-300 RF S=10.97

WN40B)-16RF11/RFRF6 RF b=4L40RF/rfRF00hmpam317awS gb/8 b/M40F

WN8"-150RF B=195.1

wn50-600 rfsch1.04

PL 25(B)-16 RF

BL100-600RJ)2FSO500RF(B

WN25(B)-150 RF S=30 s-

WN350(B)-10 T38-1080

bl5