The central air conditioning refrigeration equipment in modern society is the most common, the huge energy consumption, the use of a long time, the system accumulates a lot of dirt, greatly reduced the effect of heat transfer, need to be cleaned in order to maintain good refrigeration effect. The central air conditioning and refrigeration equipment we provide cleaning and maintenance services: 1, central air-conditioning cleaning and water treatment: the main cleaning cooling tower, cooling water piping, cold water pipes, the host system of bacteria and algae and slime, scale, rust and annual maintenance of cleaning and disinfection of water treatment; 2, the central air duct. Dirt and disinfection cleaning central air conditioning pipe, air pipe, wind cabinet, central air inlets and outlets, air handling units, fan coil and so on; 3, the chemical cleaning agent: air conditioning fin JP-830, central air conditioning cleaning agent JP-825, biocide JP-850, JP-851, JP-852, pre film agent JP-854, slime stripping agent JP-860, central air-conditioning maintenance agent JP-859A, B etc.. Glass fiber reinforced plastic cooling tower cleaning methods which glass fiber reinforced plastic cooling tower cleaning methods which