Company's effective sales technical service nets are spreading throughout China. A perfect service is available during the service life of Ludong branded products before, in and after sales. With the help of internets, Company provides its customers with fast technical service and support, and customers can enjoy at any time benefits that Company has been committed to them during product lifelong service. Company offers customers-oriented technical consultations, advice and training, and can contract scientific research and development business concerning internal-combustion engine, ceramic-seeped turbocharger and other related products.