... (20 Pairs),PVC Sheath Sell Extrusion Line For Making Communication Cable 1. Construction: PE Insulated,Core Wire Pair Strand, ... Cabling(20 Pairs),PVC Sheath2. Communication cable production line1.PE Insulation----50mm extrusion machine / 50mm+35mm ... double bobbin ) Application : Apply to CAT5 ,CAT6,CAT5E Lan cable back twist stranding .3.Cabling --- 20 Pair Cored wire collection3 ...