... ISO/IEC11801 and UL444 of America.2)Product Description:Construction: multi-stranded tinned flexible copper, HDPE insulation, two insulated conductors ... , flame-retardant PVC or low smoke no halogen materialConductor: multi-stranded tinned flexible copper, diameter in 7*0.2mmInsulation: ... cables.5)DiagramFrom upper to low: PVC Sheath, Insulation, Multi-strand Conductor, Cross, Rip Cord UTP Cat 6 four ...