GB/T 12459  偏心异径管 DN 40×20-Sch160RE12.57.1RRF RF°F5@PFRF-150 FF5RF2

DN 40×20-Sch160 RE12.57.1RRF RF°F5@PFRF-150 FF5RF2

WN 150(B)-25 FF S=4.5

WN500(B)-25 RF

WN 80(B)-100 FM S=4.5

WN 80-150RF Sch8014@=F4dn=6800-campampamp�

SO 2"-150 RF

WN250-160Gpamp0-1

47021 fm1000-0.6

PL32(B)-10 RF d=780-1.0RF

WN150-300 RFpa