All kinds of drainage board of the company model is complete, nationwide delivery, pre-order, please call! Drainage Board conical projections plastic floor, made of high impact polystyrene. Conical projections from the top surface of the plastic cone projections access layer of filter geotextile to prevent soil particles through, thus avoiding blocking the drainage channels so smooth drainage. The traditional use of brick tile drainage as a guide filter layer, using more pebbles or gravel as a drainage layer, the water discharged to the designated place. Now replace the drainage layer of pebbles with a drain to drain is saving time, effort and energy saving investment waterproof blanket, but also reduce the building's load water protection board using environmentally friendly and durable high-density polyethylene as the main raw material . By modern high-tech production lines made of waterproof drainage membrane. Product thickness uniformity, consistent wall thickness of the boss. Has a high compressive strength, load light, good toughness characteristics. After fusion welding reached corrosion resistance, puncture, does not decompose effect. Used in sandwich construction, using more life for 100 years. For basement floors or indoor sandwich construction, drainage board boss makes a lot between the buildings form a sandwich structure, with drainage, moisture, noise, heat and other functions. So green ball drainage protection board is a basic from outside the environmental impact of high durability waterproof drainage material. Used in underground engineering roof or roof greening, the building may be integrally formed flexible waterproof protection, the waterproof layer of a long period in a confined space, not aging. Greatly extending the useful life of the waterproof layer. The company made goods around the country, factory direct supplier obvious price advantage, the price is lower than local manufacturers! Sincerely extensive cooperation with our friends, draw up a grand blueprint! Sales Hotline [13287601199]