GB/T 12459  同心异径管 DN 200×150-Sch10SRCrf/u00c2 tRF S

DN 200×150-Sch10S RCrf/u00c2 tRF S

bl20-160 rj

SO 10"-150 RF

WN 50(B)-16 RF

wn25-900rfs=4

47065.4 A1 Оҙ=80350=4 S=3F90CH80Su0b)-25r000-s/

47022 c-t600-2.5-1.00

wn40(b)-150fm D=120 S=2.5 A

wn250(a)-25 mD

WN 100-25 RF50040RFhpampampampamp00-1.