... Core Wire Pair Strand,Cabling(20 Pairs),PVC Sheath2. Communication cable production line1.PE Insulation----50mm extrusion machine / 50mm+35mm ... extrusion machine Application: Apply to CAT5/CAT6/CAT7 , CAT5E,CAT6E etc cored wire extruding2 ... machine ( Vertical double bobbin ) Application : Apply to CAT5 ,CAT6,CAT5E Lan cable back twist stranding .3.Cabling --- 20 Pair ...