Over the years, YITONG products have won the bid and supporting China Petroleum & Chemical Corporation, hina National Petroleum Corporation, China National Offshore Oil Corporation, China National Chemical Crporation,China National Chemical Corporation, China Chemical Engineering Co., Ltd., Shenhua Ningxia Coal Group, Fuji Petrochemical, and other major domestic oil, petrochemical, coal chemical group and its subsidiaries in thousands of projects in oil, petrochemical, refining, refining, ethylene, olefin, LNG, coal chemical industry, Coal gas, coking, natural gas, oil fields, oil reserves, drilling platforms, analysis huts, laboratory rooms and other projects for the hazardous flammable and explosive places, products have been widely used, the quality has been widely verified.

Products scope ：

- Explosion-proof wall split air conditioners 

- Explosion proof window air conditioners

- Explosion proof cabinet air conditioners

- Explosion proof packaged air conditionings

- Explosion-proof unitary air conditioners

- Explosion proof duct system air conditioner units

- Explosion-proof HVACs