GB/T 12459  弯头 DN 100-Sch4090EL80Rrf1207�50-S5 R

DN100-Sch40 90EL80Rrf1207�50-S5 R

WN100-150RF Db=3è0 rjFRF

WN40(B)-40RF S=38880S=3/data/src

SO 150-40 RFF2/F Sch40123.70f s=5

so450(b)-10 rfmpampampampwd=&

支座 B8g500(B)-16M0rfff c=650 rlg=3100-2.5 SFpa

NB=T47023 FM400-1.0

PL350(B)-16 RF

wn50