Weishuai Brand Polyethylene (PE)single/double wall concave perforatedbellows (can be wrapped)

Weishuai Brand Polyethylene (PE) single/double wall concave perforatedbellows are perforated at the groove of the bellows, and the outer wall of the pipe iswrapped with needled geonon-woven fabric.Because the pipe holes are in the troughand are long, it effectively overcomes the disadvantages that flat wall pipe perforatedproducts are easy to be blocked and affect the drainage effect. For different drainageneeds, the size of the pipe holes can be 10mm x lmm-30mm x 3mm. and can be evenlydistributed in 360 degrees, 270 degrees, 180 degrees, 90 degrees and other ranges.