The new all-weather aluminum gutter pipe square tube under the water drainage system: Ruichen with advanced technology and management, to the Chinese building materials into a new concept, and grew to become an important roof system supplier of building materials and guide, Zhejiang Province is the development, production, marketing, consulting, installation and after-sales service in one of the large-scale building materials manufacturing company ..... Cailv What are the characteristics of the water system? People mostly Why choose it? Always have their reasons. Here to explain to you what; first: First, it is for the construction of metal metal texture bring strong performance. Second: the choice of different colors, to the designer with a broad imagination, and the building itself shows the natural color with the atmosphere of the building. Third: Cailv not oxidized, it is because the surface of aluminum will form an invisible oxide film. Cailv polyester coating surface, can ensure it remains beautiful qualities in cold temperature, acid rain, salt corrosion and other harsh weather conditions changing. Fourth; due to the low proportion of aluminum-magnesium alloy, with a metal hook, so gutter force safe, reliable, easy to learn and easy to install. Fifth: it can be recycled, in line with national green building. Cailv experiment: 1: 500m impact test dropped from a height of 15mm diameter mass of 500 g of steel balls. No peeling 2: bending test at room temperature slowly by hand press at 180 ° bending test. No peeling No cracking 3: Salt eclipse experiment carried out cross-cut with a cutter to just touch the aluminum sheet date, at 35 degrees / C conditions, 5% saline spray 360 hours. Track the spread of rust from the cut of no more than 2mm 4: 10% of the acid etch test HCL, CHCOOH, H2SO4 experiment 100 hours. No surface change 5: temperature experiments in the arctic cold of minus 50 degrees and 60 degrees below the equator temperature insolation conditions stable performance, consistent color