Authentic, Chinese vocabulary, pronunciation zhèng pǐn, refers to the products produced by a brand original factory, and the corresponding vocabulary is fake and defective. Authentic products are also represented by qualified products, first-class products and excellent products, which are symmetrical with second-class products. Products that fully meet the quality standards. The proportion of genuine products in all finished products is called "genuine rate", which reflects the technical level of enterprise production. Authentic products are also represented by "qualified products", "first-class products" and "excellent products".