China Factory HDPE Perforated Drain Pipe for Road Foundation Dewatering

China Factory HDPE Perforated Drain Pipe for Road Foundation Dewatering. Lifetime Warranty Coverage: Comprehensive 50-year warranty for normal use with free parts and labor for mechanical defects. High Permeability Design: Surface porosity exceeds 85% with capillary action and siphon principle for superior drainage. Customizable Hole Patterns: Holes can be drilled at specified intervals on the outer surface according to customer requirements. OEM and ODM Services: Full customization available for LOGO, packaging, and product designs based on client requests. Wide Size Range: Available in diameters from DN20 to 2000mm (1/2 inch to 80 inch) to fit various project needs. Diverse Material Options: Constructed from PE100, PE80, PE4710, PE3608, PE100RC, and other high-performance grades. Multiple International Standards: Compliant with ISO 4427, EN12201, AS/NZS4130, ASTM 3035, DIN8074, and GOST18599. Free Sample Availability: Free samples provided for small quantities, with freight charges collected from the buyer.