The water supply and drainage systems outside wall: 18758293397 products includes a variety of materials Cailv, galvanized, copper, etc., to fully meet the requirements of the developer of the building. There are K-type, curvy modern European and American style with Spanish-style semi-circular, natural simplicity. Most importantly, this product has excellent weather resistance, simple design, easy to install, durable, metallic, sleek, for your home, bring a strong performance. Colorful, metallic finish. Rich colors for designers and developers to bring various options. Metallic facade for the building to bring simple visual experience, fashion and elegance coexist, is preferably arranged European style architecture. Shape rich, stable weather. Corus provide North American popular 51/8 inch K type hyperbolic appearance, and European and American popular 6.5-inch semicircle (H) type two designs, excellent weather resistance and chemical stability, look as new. 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. High performance, affordable. Compared with the traditional PVC production system. Performance, fewer parts, construction and more convenient. Application Show dome eaves gutter installation: 1) After you install gutters segment, segmented gutter length front 20cm, back-end is 19cm. (Eg dome radius is too small, may be appropriate to reduce the length of gutter segment). 2) After the fan-shaped segments gutters into overlapping connection with the rivet, then glue seal; gutters hanging pieces are arranged one at each connection. 19. Rivet and minor scratches gutters or downspouts surface due to construction reasons, Diaoqi phenomenon, the use of special refinish repair. 20. After construction, PE protective film gutters and downspouts surface coverage except to expose