Cov khoom

Rau zoo tias noj 1986, Derun yog koj cai li cas ua hauv tau xaiv ua hauv product development thiab ua hauv lwm hauv product quality. Rau zoo tias nyob hauv 1 million sets, lub company yog hloov xwb thaum hauv China's automotive engine parts thiab diesel engine parts manufacturing industry, thiab yog hloov hauv kev pab thiab hauv kev npawb nrog hmoob thiab hmoob nws.