Zhejiang hdpe double wall corrugated pipe manufacturers 18603793535 HDPE perforated corrugated pipe, seepage control, blind drainage pipes, perforated corrugated pipe, longitudinally www.jiangtaikeji.com HDPE perforated corrugated drain pipe, also known as seepage control, blind drainage pipe, polyethylene (PE) to add other additives to form the exterior of the new corrugated plastic drainage pipe seepage, divided into single, double wall corrugated pipe perforated, light weight, withstand the pressure strong, excellent bending performance, ease of construction and so on. As the product of the hole in the trough and is elongated, effectively overcome the flat products susceptible to plugging the hole affect drainage effect of * end. For different drainage requirements. The size of the holes may be 10mm × 1mm-30mm × 3mm, and can be 360 ??degrees, evenly distributed within the range of 270 degrees, 180 degrees, 90 degrees and so on. hdpe Bellows Common Specifications: Φ50mm single-wall corrugated pipe for drilling a tunnel to drain ring; Φ100mm double-wall corrugated pipe used for tunnel drilling vertical and horizontal drainage; Φ400mm perforated double wall corrugated pipe for drainage and embankment central, vertical tunnel road project lateral drains. Perforated corrugated HDPE pipe, seepage control, blind drainage pipes, perforated corrugated pipe, longitudinal drains