... develop and produce wire and cable , and its main production are audio and video phone lines, lines, the ... Benefit"ISO9001,ISO2001 GBT19002(ISO9001-2001) & CCC certificateMaterialSheath:PVC ,FLEXIBLE PVC Conductor:COPPER, TIN COPPER ,CCA ,TIN CCA ,SILVER ... Max. continuous normal operating Temperature: 90oC (PVC Sheathed cable).3) Speaker line not only has excellent electric and mechanical properties ...