In a market economy, in order to ensure the interests and quality of its own company, qualified suppliers are often selected from many suppliers. They will review the candidate suppliers in the quality management system, the product itself and the product implementation process. The audit results are used as the basis for purchasing decisions to ensure that the supplier's products meet and meet contract requirements and maintain recognition of supplier capabilities. From January 8 to 10, the relevant review team of Manhummer reviewed the quality management system and production site, raw material supply, new product development, and production process flow of Shijiazhuang Chentai Filter Paper Co., Ltd. The company's executive vice president, technical director, leader in charge of production and quality and heads of relevant departments accompanied the review.