HDPE/PE Multi-Layer Co-Extrusion Silicon Core Cable Protection Tube Extrusion Line PE HDPE LDPE PPR Plastic Water Gas Oil Supply Pipe Tube Production Machine. Silicon Core Pipe Design: Inner layer features lowest friction coefficient silica gel for easy cable transmission. High-Quality Materials: Substrate made of high-density polyethylene with corrosion resistance and smooth inner wall. Global Technical Support: Engineers available worldwide for factory installation and worker training. Quality Assurance: Passed ISO9001:2000 and CE certification with dedicated QC department. Flexible Customization: Offers full customization, minor customization, and flexible options for designs and samples. Online Pre-delivery Check: Provides detailed testing videos and reports for online machine verification before shipment. Efficient Production: Simple construction shortens period and reduces labor costs for cable communication projects. Reliable Warranty Service: 12 months guarantee with free spare parts for warranty items and 6-hour response time.