Three-dimensional hard permeable tube (also known as: plastic blind ditch, drain pipe, grain mesh permeable tube), hard water tube in the two-thirds upper part with holes, the lower part 1/3 is without hole, can prevent the leakage of groundwater occurs secondary, quickly come in the groundwater.
Reliable plastic drain pipe applied to the construction of railway construction, highway, airport runway, golf, football field,
big lawn, garden greening, highway, landfill, slope protection, retaining walls, tunnels and other large channel underground
waterproof engineering.