In order to further elevate the supervising level and ability of quality inspectors to assume their liabilities and to better execute ISO9001 2008 quality management system, the enterprise has established a quality supervision squad, which is led by professional technicians. Frequent learning programs are launched and production inspection requirements are clearly defined. The importance and principles for the interior assessment have become a set procedure, making sure the products are under control before leaving the factory so as to guarantee the compliant rate of them.