Sihon Electronics Co., LTD. was established in the year of 1986. It lies in the city of Tianchang, which is the hometown of electrical products in China. We have Five branch companies: Ozone Equipment Factory: produces car exhaust economizer (our patent product), various models of the ozone power, ozone ceramic plate, ozonizer, etc. We also provide a variety of ozone accessories, ozone machines, ozone equipment processing and OEM services.