... insulation:PVC 3 sheath:PVC and rubber for option 4 conductor:bare copper,CCA control cableSuitable for electronic and underground fiels, at the ... ,3,3+1,3+2,4,4+1,5 5)for laying indoors,in tunnels,in ducts Types:1) Single core ... company is a professional supplier of various kinds of cables for over 10 years.2) The quality of our products are ...