Hami City underground garage drainage board manufacturers supply // Hami City garage roof drainage board supplier waterproofing and drainage systems to provide effective protection and smooth inner layer structure of space, used in the underground garage roof waterproofing and drainage system, can achieve a variety of complex building construction requirements, to meet the requirements of different emission intensity of rainfall intensity of each area under the weight perfectly suited to rely on water to reach freedom emission requirements. Anti HDPE drainage protection system consists of high-density polyethylene, with the most reliable protection features puncture-resistant plant roots and soft flexible waterproof protection of the Company's goods sent across the country, factory direct supplier obvious price advantage, cheaper than local manufacturers Lower! Extensive cooperation in good faith with friends at home and abroad, and draw up a grand blueprint! ! !