A good precision industrial cleaning agents must meet the following conditions: ① chemical stability, reaction and be cleaned easily happen; ② small surface tension and viscosity, infiltration; ③ low boiling cleaning agents that can dry themselves; ④ no flash point tank cleaning agents, non-flammable; ⑤KB value should not be too high to be cleaned to avoid compatibility; ⑥ low toxicity, the use of safety; ⑦ non-ODS and low GWP value (GWP), and environmental protection. Metal corrosive acid on the boiler, central air conditioning and other heat exchange equipment generates inevitable corrosion damage, especially hydrogen permeation damage, make the metal crystal structure is damaged, leading to serious embrittlement and hydrogen induced cracking mold cleaning agent, the safe operation of heat exchange equipment potentially dangerous. Environmental cleaning agent used is biodegradable bio-acid ink cleaner, through the national authorities test the metal corrosion rate was measured by national standards, 1/20, even lower than the corrosion rate of metals in water, pickling metal corrosion rate of one percent, and even liquid cleaning agent on the skin is not damaged. Hoods Cleaner | Dongguan Ferrer trade | Shijie cleaners provided by Ferrer Ltd. of Dongguan City. 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.