In production management,the company has established quality assurance system according to morden enterprise management standards,and has passed the ISO 9001 quality management system certificate.Quality is the life of the enterprise. The whole company operates in strict accordance with the ISO9001: 2008 management system. The whole process is strictly controlled according to the standard. Each procedure was carried out “Three Inspection System” of self inspection, mutual inspection and full-time inspection. The veto power is used in quality control.All the technical performance of the products meet GB / T 19519, GB / T 20142, DL / T 810 and TB / T 3199.2 and other standards.