弯头 DN 100-Sch8090ELd=66

DN 100-Sch80 90ELd=66

SO15(B)-25TBBAF Sch80SM80sCH810 RF0RFs=7rf RF)rf sch160gRJB

SO15-16FF2/

NB/T47023 FM1900-2.5Mh40S=5 A=3

BL900-6FF

SO 80-300tm-1.54=146-24 RF20RFFSch603R

wn300b-40rf C=65 H=125

BI 24008160 l=-100RF0)-16RFScRN/

bl15-160rf/

WN100-