GB/T 12459  弯头 DN 50-Ⅱ-390EL/0-206

1D DN 50-Ⅱ-3 90EL/0-206

BI 10006&a

WN15(A)-100FMf/@47023 R

BL20-150RF0RFRpHG/mpampa

PL65(b)-16RFRF1h1=18/c=.3cfÃF

WN150B-100 RF S=1

pl40(b)-16 rf 15ã¤â»â

WN 1"-150 RF Sch40S B=26FRF-RF-165250.07f bb�4

bl50-6rf Rδ=

WN 80-150 RFrff6@