弯头 DN 80-Ⅱ-890ESF S=9540-150RSch40RF8 RF--RF S=12

DN 80-Ⅱ-8 90ESF S=9540-150RSch40RF8 RF--RF S=12

NB/T47021 FM800-0.63 C

BI 325-0n65-150 rf s=7.01F F6.05

SO400A-16 RFbb/u008/

wn50-25 m s590 b1=b)-fm450-2. f2=3RF1=15a3/u00c2/u0

47023 FM400-1.0/40-945

1 RF 600-1.60B)-2

WN20-150T100-16 rf-4-16

PL80B-