On the afternoon of June 6, CNAs on-site review expert group of China National Committee for conformity assessment visited the company's Experimental Center for on-site review. At 14:30 p.m., the first audit meeting was grandly held. During the meeting, Zhang Chunwang, deputy general manager of the company, introduced the development process of the company, the construction progress of Hongyu building office building, production and operation status, etc. to the review experts. Yue Yaoping, director of quality assurance department, introduced the basic situation of the experimental center to the review experts, and the review expert group's views on the company's development concept The company highly evaluates the quality policy and quality objectives of the experimental center.

On the morning of June 7, accompanied by Yue Yaoping, director of the center and he Shanshan, quality director, the review experts assessed the on-site detection Demonstration Test of the inspectors in the chemical room, physics room and finished product room of the experimental center. The inspectors successfully passed the assessment of the detection data of 15 detection fields and 42 detection parameters with familiar standard detection methods and stable detection skills.

At 14:30 p.m. on June 8, the final review meeting was held. During the meeting, the review experts made a review report in combination with the two-day review to warmly celebrate that the experimental center of Shandong Hongyu Rubber Co., Ltd. successfully passed the on-site review of national laboratories.