GB/T 12459  同心异径管 DN 125×100-8RC250RF0mp0-RF RFpa@pF8

DN 125×100-8 RC250RF0mp0-RF RFpa@pF8

WN65(B)-300FF/H/

NB/T47021-2012BL500-25 RF

WN 16"-150 RF S=16.6

WN400-150 RFR400/0bRF SR0-1.0 Ã

SO32B)-16 G6F3234-95 δ0=5 h=30-1/=194.1ch40S8090M

WN 100-150 RF Sch10Sa

bl40b-40 m550-1.6fHG/T150 RFfa

BL5