The one sky water protection unit is part of hangzhou golden house water protection materials ltd. And hangzhou golden house water protection materials ltd. Was created in 1995 as a modern, integrated, industrial and trade-based enterprise for the scientific development, production and engineering of water protection materials. The company is located in the industrial park of new street town in the beautiful and rich xiaoshan, with an area of 30,000 m2, with multiple production units such as an annual production of sbs, an ap-modified tarcrete tarcrete complex, 20 million square metres of self-adhesive rolls, and polyurethane waterproof paints and waterproof paints. In early 2000, the company approved iso9001 international quality system certification, which was the first enterprise in zhejiang province to obtain a licence for the production of water-resistant materials and to receive the "recommended products of the china construction association"。