It is a key focus and leading companies in the china hydraulic industry is the leading enterprises of National high-performance hydraulic high-tech industrial base in Luzhou ,The national demonstration base of hydraulic industrial clusters in Luzhou .Under the jurisdiction of the company’s subsidiary there have Chengdu Changye Machinery Co,Ltd. And Sichuan Changjiang Hydraulic Tiancheng Machinery Co.,Ltd.The companies design and manufacture of multiple directional control valves,Piston Pump gear pumps/motors,hydraulic cylinders,hydraulic systems and oil machinery,as well as the specific needs of customers to provide complete system solutions,Products are widely used in engineering machinery and engineering farm、vehicle,construction,metallurgy,petroleum,marine industry,brand-name hosts the first choice of supporting,and exported to international markets.Development of the company’s load-sensing multiple directional control valve and the Beijing Olympic games opening and closing ceremony of the stage performances hydraulic lift systems,door machine system of the three gorges hydro-power station and other products has get progress awards of science and technology on many occasions by the Machine-Building Industry and provincial,BOCOG and the technology & industry for national defense.