To achieve a better market acceptance, we now have the most modern machinery in the factory, e.g, robot welding technology and electrophoresis has been widely used in the surface quality control procedure. In order to provide the customers with qualified products, 3D-MODEL measurement(CMM), salt-spray testing machine, tensile-testing machine and fatigue testing machine have been used in the quanlity control for the products. Having an experienced R&D team and equipped with Warm Compaction equipment, we are capable of making strong& precise suspension parts for customers. Since 2001, CHENG YUAN has obtained approvals of ISO9001:2000, ISO/TS16949 third party certificates. Implementing totally quality management system guarantees the supply of quality products to our customers. In future, Chengyuan will continue to work together with its partners in a joint effort to supply customer needs. and this with the latest in Research, Development and Production Technology. And our ...[More]m and dedication in auto parts can surely guarantee your satisfaction.