The strainer to hold wire quality is comprised of bovine V and support Strip, adopts advanced global scaling of winding technology and total weld. Each point of crossing is connected by the merger, so the tube has a solid structure and a good mechanical performance. Section v allows to avoid the blockage and to ensure smooth water flow. The continuous slots allow a wider surface for water filtration, and at the same time a decrease in the speed of infiltration of groundwater, in order to avoid that the sands enter the tube under a relatively great pressure, and so the tube has a good ability of sand filtration. The slots may vary according to the different geologies.
