GB/T 12459  同心异径管 DN 80-Sch40RC SCH800t0ESrfFSGS=5 R

DN80-Sch40 RC SCH800t0ESrfFSGS=5 R

SO80(B)-16 RFJISB2rfH4

47023 M800-1.6/data/src/

so50-16 rfSCH80 Spng/H40S10

DN600/PN10/05A

WN350-300 RF Sch40-fb65g/t0-CH40S)-rf-

DN 500-5.5 TSâm800-2.5/

47023 FM 1800-2.5.065600-s/

HG=T20592-2009PL50(B)-16RF

PL 1