Gutter system (or finished gutter system) can be organized rationally discharge rainwater from the building and to prevent the roof, walls and foundation damage, which is a modern villas and multi-storey buildings will be selected products. Finished gutter systems are widely used in the United States and Europe. Cailv the water system features: Cailv in the natural environment will form oxide protective film, with exceptional weather resistance. Beautiful appearance, K type Gutter hyperbolic design, downspouts using corrugated rectangular design, but both seem generous and coordinate with the building facade, stylish and elegant; semi-natural ancient metallic gutters bring luxury, immediately highlights Housing grade, enhance the value of the house. Personalized color customization, and buildings with natural color coordination, showing the building's intentions to create. Green, recyclable, in line with national green building requirements. Cailv the water system production standards: A. Aluminum water system uses a series of aluminum, aluminum-manganese alloy 3 series, 5 series and 6-series aluminum-magnesium alloy aldrey B. aluminum coil thickness divided 0.6,0.7,0.8, 0.9,1.0,1.1,1.2 etc. C. aluminum coil surface through a special cleaning process, then colored outdoor polyester electrostatic spray coating. D. accessories and supporting the use of the entire water system, E. aluminum thickness deviation of less than +0.01