GB/T 12459  同心异径管 DN 20×10-4RCam RF Sch160 tf=1Fa0 rFF00-s/@4

DN 20×10-4 RCam RF Sch160 tf=1Fa0 rFF00-s/@4

ABL1500-300RF-FM 500-0.6=12504hg206mp;amp;am4.0/52-1

BL 25-63 RF&ampamp aa==7sch4RJ148405(b) d=Fh015(B sc

PJ/SE 125(B)-10 RF Sch40S8./a0e

HP-1 δ=6 S1=640 S=405

PL 65(B)-6 RF/FaB)0-0.256rf.4Rch100

SO60