Downspouts choice first look material, metal material is one of the best, and then look at the brand. Ruichen "Corus" water system designers and product developers to provide a variety of colors to fit with the construction of the roof, the roof, exterior walls and other colors. Beautiful appearance: Ruichen "Corus" drowning shape with North America's most popular K-type hyperbolic exterior design and 51/8 inch gutters, downpipes is used corrugated rectangular design; while metal texture to your building facade bringing a new visual expression. Safe stylish and elegant, is the North American residential classic configuration. Superior weather resistance: Ruichen "Corus" involved with high corrosion resistance. Can withstand cold, heat; in acid rain, salt corrosion and other harsh variable climate remains stable color, look as new. Ruichen "Corus" metallic water system with excellent weather resistance, simple design, easy to install, safe and durable. Its rich color, texture metal sleek buildings bring a strong performance. Metal water system is more environmentally friendly. Raw Ruichen "Corus" water system of high-tech weather formula, superior performance, long life, anti-aging, it will not happen yellowed, peeling and corrosion even in the rain, salt corrosion and other harsh environments phenomenon; the same formula was introduced from North America, the new non-toxic additive, in line with environmental protection requirements. Building Materials Co., Ltd. Hangzhou Ruichen