Detergents aluminum nitrate or aluminum nitrate with an aqueous solution of nitric acid and a soluble aluminum hydroxide can be formulated in a stainless steel heat exchange equipment to calcium and magnesium carbonate as a main component of detergents. Optimum use of the descaling conditions: (1) the content of aluminum nitrate in cleaning solution in the range 25 to 30%; (2) cleaning the operating temperature 45 ~ 50 ℃ by those of ordinary carbon steel or stainless steel. and heat exchange equipment that together constitute the ordinary carbon steel, in the main component was added to methenamine buffer conditions, aluminum nitrate may also be used as detergents. Features: detergents is a specially designed detergents detergents for aluminum and its alloy plating process, especially for communications dusting filter cavity plating. Excellent cleaning liquid water detergents, for subsequent plating to provide a uniform and dense surface of the substrate can be obtained good coating adhesion. Solution without using nitric acid, phosphoric acid and hydrofluoric radiator detergents, no NOx and hydrogen gas is released when the pipe work detergents, wastewater phosphorus emissions, are environmentally friendly. Especially for high silicon content aluminum alloy (such as A356, ADC12, etc.). Pipeline detergents _ Dongguan Ferrer trade (certified) _ detergents provided by the Dongguan City Ferrer Trading Limited. Trade Co., Ltd. of Dongguan City Ferrer (www.furui-china.com) is Dongguan, industrial cleaners leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Ferrer trade in Dongguan leadership with the staff warmly welcome all inquiries negotiations to create Dongguan Ferrer trade a better future.