Green drainage permeable plastic blind ditch garden tunnel underground permeable drainage blind pipe highway circular rectangular

Soil and Water Protection Blanket, River Slope Protection, Mesh Mat, Mc Reinforcement Mat

Steel wire Ω - shaped drainage pipe for spring semi-circular tunnel, easy to construct, circumferential PVC soft type

Composite waveform drainage pad for highway and railway concrete retaining walls, W-shaped permeable drainage network pad for reverse filtration drainage

Wave shaped drainage pad W-shaped composite roadbed retaining wall seepage drainage network pad drainage isolation pad

Hard permeable pipe with small diameter, capable of draining and hydrolyzing accumulated water, suitable for garden greening, customized according to demand, without large diameter

HDPE hard permeable pipe for highway greening subgrade to prevent secondary leakage underground

HDPE single and double wall corrugated pipe, small-diameter acid and corrosion resistant drainage and sewage pipeline, Zhongteng project