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 In order to better meet the needs of the market and products, TZYY actively carries out a variety of certification and accreditation work, obtains various production licenses and market access qualifications. It has been recognized as a high-tech enterprise by Shanxi Science and Technology Department, and is a pilot enterprise of national-level integration of industrialization and modernization. It has passed the certification of occupational health and safety management system and the certification of environmental management system.