GB/T 12459  等径四通 DN 250-9.27CRSF82.6RFr/L6me0040sofssB-3

DN 250-9.27 CRSF82.6RFr/L6me0040sofssB-3

SO 250-150 FF SCH4016/9 S1.0/

WN 80-1500 RF Sch40/ºâF0-18.57

PJ/SE 25(B)-25 RF Sch40

SO40(A)-25RFС=1

SO 1/2"-150 RFF2000-2.5/uo5-0.6FF

wn20 -150 rfFS00cRF.615�150 RF0RF R

BL20(B)-25FF=1 FF160

WN 65-9