1：Raw material control: The selection and procurement of our raw materials are environmentally friendly, harmless to human health, recyclable, etc. We need to evaluate suppliers in the procurement process to ensure that the quality of raw materials meets the requirements, and establish quality files.

2：Production process control: In the production process, we need to pay attention to the quality control of each link, adopt advanced equipment and technology, provide necessary training for employees, and ensure that the production process meets the standardized requirements.

3：Inspection control: Strict inspection of finished products, in accordance with ISO standards, the establishment of a sound inspection process and record system to ensure that the quality of products in line with relevant standards and customer requirements.

4：Defective product handling: Classify and analyze the found defective products, find out the cause of the problem and improve it, and establish defective product files to ensure that the problem is completely solved.

5：Feedback control: Collect and analyze customer feedback information, timely solve customer complaints and opinions, improve products and services, and improve customer satisfaction.