In order to further standardize the company's production, scientific research, sales operation process, effectively control risks, improve investment returns, and form a standardized operation and standardized management model, the company embarks from a strategic perspective, and carries out the introduction of ISO 9001 quality management system. With the unremitting efforts of the company's employees and the comprehensive, strict and meticulous guidance and examination of experts from the authoritative national certification bodies, we have confirmed that our technical level, conditions and management meet the requirements of ISO 9001 quality system standards, and obtained the ISO 9001 quality management system certificate on July 22, 2019.            Since its establishment, Shenzhen Zhongzheng Metallurgical Science and Technology Co., Ltd. has adhered to the business philosophy of "taking honesty as the foundation, quality as the survival, science and technology as the development, and service as the market development", especially regarding quality as the life, and serving customers sincerely as its responsibility, so as to make the enterprise develop considerably in the increasingly fierce market competition.            The certification of quality management system and environmental management system has promoted the standardization, procedural and standardization of the internal management of the company, and laid the foundation for the company to achieve comprehensive scientific management. The adoption of the quality system shows that the company has reached a new level in product quality, service awareness and standardized management, which is of far-reaching significance to the development of the company.