Lanhua advocates the enterprise spirit of people-oriented and customer-oriented, and has a large number of outstanding talents with intermediate and senior technical titles and a well-trained workforce. Set up a "Quality Inspection Department" specially responsible for product quality inspection, and implement "three-level inspection" combining "self-inspection", "mutual inspection" and "special inspection" in the process of process and product quality control, so as to ensure " The three-level product quality inspection system of "no input of unqualified raw materials, no production of unqualified products, and no delivery of unqualified products", adheres to the full-staff quality monitoring system of "supervision of the next process, the combination of the self-inspection of the process and the quality inspection and monitoring" ;Establish a quality inspection and inspection center to test the quality throughout the process to ensure high quality and long-term stability of products.