... .D:5.5X11.0 PVC 1, the inner conductor materials with oxygen-free copper, tinned copper, copper clad aluminum, tinned copper ... or copper clad steel.2, the outer sheath material can be PVC in various colors and transparent PVC.3, the material ... accordance with customer requirements.The conductor material is up to your choice. We'll try our best to meet your demand! cable speaker,to be ...