First-class enterprises come from first-class quality management. Haitian Seiko fully introduced 6S site management and formulated internal control standards higher than industry standards. From the incoming of raw materials and purchased parts, to the process control of the production process and the outgoing of the final products, the quality management system is strictly controlled according to ISO900 1:2000: 2000, and every link is checked at every level. Advanced testing equipment such as Leeds CMM, Lei Nishao Laser Interferometer and Japanese Multifunctional Parts Test Bench are introduced.