Job responsibilities: 1) Participate in product development and design; 2) Be responsible for testing and verification of each stage of the product; 3) Provide technical support for new products, fabrics, processes, etc.; 4) Prepare product specifications, test plans and other related technical information based on customer needs, international standards and national standards; 5)Assist the quality department to formulate quality standards and improve product quality; 6) Prepare relevant document reports and records in a timely manner; 7) Assist in handling customer complaints and important quality issues.