In order to ensure that products or services meet certain standards and requirements, Leenz adopts a series of management and monitoring measures. Quality control includes the following aspects:

1. Quality management system: Establish and implement a complete quality management system, including quality policy, quality objectives, quality manuals, procedure documents, etc., to ensure the systematicness and continuity of quality management.

2. Quality standards and specifications: Develop quality standards and specifications for products or services, and clarify the technical requirements, performance indicators, inspection methods, etc. of the product so that the product can be evaluated and monitored.

3. Process control: Through the monitoring and management of all aspects of production, processing, service, etc., we ensure that products or services meet quality standards during the production process and avoid quality problems.

4. Inspection and testing: Establish a complete inspection and testing system to conduct sampling inspection, comprehensive inspection or regular testing of products or services to verify whether the quality of the product meets the standards.

5. Processing of defective products: Establish a defective product processing mechanism to deal with unqualified products, including rework, scrapping, returns, etc., to prevent defective products from flowing into the market.

6. Continuous improvement: By collecting and analyzing quality data, promptly discovering problems and taking improvement measures to continuously improve the quality level of products or services.