Atop's quality management system proves to be applicable to improve the pass rate of finished products. From materials to finished products, there are several sets of standards and criteria to be abided by. As for raw materials, they should be consistent with international standards. There should be no impurities founded in the raw materials. The manufacturing processes are strictly supervised and controlled to remove defectives. Before the products are delivered, their appearance and functions are fully examined to meet industry standards. All these procedures together constitute the quality management system of Atop.