Quality Assurance System
YIH CHENG FACTORY CO., LTD has a sound of quality assurance system approval of ISO 9001, ISO 14001, OHSAS 18001, inspection testing and certification of German VPA, GS and VDE. All of product is controlled by five systems as raw material inspection, the process self-inspection, the inspector random inspection, half-finished goods inspection, and finished goods inspection. Well trained staff is familiar with all of different screwdriver international specification, and the strong control team combines different specification to develop the unique Lancer quality assurance system.