Supply House roof square rainwater pipes, gutters finished: color multi-curve design: gutter cross-section of North America's most popular K-Snap multi-curve, downspouts is used compact rectangular design with a corrugated; Cost: force component metal products, a substantial increase in security forces, and configure less overall reduction of the total cost, more cost-effective; learn easy installation: small parts, installation learn, natural and reliable connection between the parts. Look as new: invisible oxide film formed on the surface of aluminum, aluminum oxide is no longer, this self-protection aluminum with high corrosion resistance; secondly aluminum substrate surface coated with color polyester coating layer, color stability; coefficient of thermal expansion coefficients of the base layer and the third aluminum cement close risen and will not cause cracks in Cailv the water system after use, resulting in leakage; while aluminum at a temperature of -45 ° C to 260 ° C of Rooms, strength, performance unchanged; it can in the cold area - such as northeast China; intense sun - such as southern China, resistant to the temperature difference between day and night; as the Chinese Xinjiang and other harsh variable climate use, to ensure lasting as new. Hangzhou Corus water system gutter Sales Co., gutters, metal gutter, finished Gutter, gutters, gutter fell into the water, the water system of metal, resin rain gutters, rain water tank Hangzhou Ruichen Building Materials Co., Ltd. is water system in metal production, sale, installation of high-tech professional building materials company. Metallic facade for the building to bring simple visual experience, immediately improve housing quality, highlighting the value of housing, fashion and elegance coexist, is preferably arranged European style architecture. Shape rich, stable weather. Provide North American popular 5,6,7-inch K type hyperbolic appearance, excellent weather resistance and chemical stability, look as new. Continental downspouts better design quality, cost-effective. No leaks deformation worries, at any angle bend, integrated manufacture, install and fully guarantee the reliability. Safety component, green. A substantial increase in the use of metal pieces by the force of security and reliability, to meet wind and snow load, performance and lasting. And recyclable, in line with national green building requirements. High performance, affordable. Compared with the traditional PVC production system. Performance, fewer parts, construction and more convenient.