... earth cable wire 300/500V 2,10sqmm-185sqmm 3.PVC insulation. 4,IEC,BS,VDE,GB/T,JB/T The welding cable ... best service.Main Manufacturing Procedure: 1, Copper wire drawing and annealing.2, Copper wire stranding .3,PVC insulation extruding.4,Cores Twisting ... contact to us immediately Copper conductor pvc insulated earth cable wire