Qingdao Guolin Environmental Technology Co., Ltd was established in 1994, which is a high-tech enterprise based on advanced ozone technology and is ranked as the leading ozone system suppliers in China. Guolin is engaged in ozone generation mechanism research, ozone equipment design and manufacture, ozone application project design, installation, debugging, operation and maintenance for water treatment project, waste water treatment project and flue gas denitrification project. Guolin is the main editing unit of China Urban Construction Industry Standard-"Ozone Generator for Water Treatment"(CJ/T322-2010 )and undertake the project task of 12th Five-Year Plan "Special Water Item" ---"large ozone generator research, development and industrialization". Guolin is the first manufacturer in China which can produce ozone generator with 10kg/h, 50kg/h, 100kg/h and 120kg/h capacity. Thousands of sets of ozone systems have been widely used in water treatment, waste water treatment, flue gas denitrification and industrial oxidation, etc. With more than 20 years of development, Qingdao Guolin Environmental Technology Co., Ltd. has become the globally known professional ozone equipment manufacturer and ozone system supplier all over the world.