The company has established a perfect product quality control system and passed ISO9001 certification in 2015 and ISO14001,iso45001 certifica in 2020. Strict quality control procedures are established in the production environment, equipment, upstream suppliers, pollution management, cleaning and disinfection, pest control, staff training, warehousing and logistics, advanced quality system, production and services, traceability, recall system, laboratory control, internal audit, and conformity of laws and regulations. In order to improve the product quality, there are metal detection equipment at the raw material input end, production process, raw material output end, etc.; at the front end of the product coiling, each production line has a defect detector to monitor various defects in the product process.