Sungor is founded in 2012, and is a main manufacturer of PVC rain gutters&downspout system, Colorful Alu gutter&downspout system,Stone coated Metal tile,Asphalt shingle,Building Waterproof materias,Roof Materials.Our producing base is located in Hangzhou,Zhejiang.covered about 2000 square meters. Besides it,We have 3 branch factories in Shandong and Tianjin. Your profitability is a key aspect of our ongoing growth. If you interesting with our product, pl check the product information on the web, and contact with us.