AO TONG.Established in 2000, AO TONG is a professional manufacturer of high-pressure hoses in Jingzhou Economic and Technological Development Zone, Hebei Province, with a registered capital of RMB 196 million, covering an area of 37,000 square meters and an annual production capacity of 6 million standard meters. The company has 380 employees, including 23 middle and senior technical talents. Its products cover more than 20 series of hydraulic hoses, steel wire-wound hoses, etc., which have the performance of pressure resistance and anti-pulse under the extreme environment of -40℃~100℃, and are widely used in the fields of construction machinery and coal mine. Its high-pressure hose with excellent flexibility and fatigue resistance sells well in more than 20 provinces and cities across the country, and exported to Southeast Asia and the Middle East. Equipped with advanced production and testing equipment, the company strictly implements the ISO quality management system, and has won market recognition through its quick response after-sales service system, becoming an important supplier in the field of hydraulic fluid transmission.