Recently, Zhengzhou Daqian Environmental Protection Technology Co., Ltd. successfully passed the annual supervision and audit of ISO9001 quality management system, ISO14001 environmental management system, and ISO45001 occupational health and safety management system. The audit team experts highly praised the company’s production site, quality control processes, environmental protection measures, and other aspects. The passing of this re examination marks the continuous and effective operation of Daqian Environmental Protection Management System, and the authoritative recognition of product quality and service level.