
Hewai 16-63mm Pex-C Multilayer Pipe for Water Plumbing Underfloor Heating Tube. 50-Year Warranty: Comprehensive 50-year warranty coverage under normal operating conditions. Full System Guarantee: In-house production of PEX, multilayer pipes, and fittings ensures complete system integrity. High-Quality Raw Materials: Sourced from top global suppliers including Dowlex, MitsuiChemicals, SK, LG, and Kuraray. Advanced Production Capacity: New plant with high-speed extrusion lines capable of producing 300,000 meters daily. Strict Quality Control: 100% inspection including visual and functional checks with constant online monitoring. Global Certifications: Certified with GOST and ISO9001 standards for international compliance. OEM/ODM Services: Flexible customization options including full, minor, and sample-based customization.