1 Optic-cable inner sheathing: including PE inner sheathing , PAP PE synthesizing inner sheathing. 2 Optic-Cable outer sheathing: including PE outer sheathing , PAP PE synthesizing outer sheathing and PSP PE synthesizing outer sheathing 3 Double parallel steel wires strength optic cable 4 Inner and Outer sheathing for ADSS cable (requires Aramid stranding device) 5 Extruding materials:LLDPE.MDPE.HDPE.PA12 and So on