Drainage net production line 

Taking HDPE as raw material, the ribs of drainage net areextruded from special die head. Every three ribs form 3D structurewith drainage channel through fixed gap and angle. The rigidity ofthe middle rib is high, which shapes rectangular drainage channel.The three ribs have great tensile strength and compressivestrength. The drainage channel among the ribs can afford high load.It can prevent the geo-textile from imbedding the net core andensure the channel expedites. Drainage net can be divided into twotypes: high strength and high channelization.