Carton or hard paper case: It is the most widely used packaging product. According to different materials, there are corrugated boxes, single-layer cartons and so on. , there are various specifications and models. Cartons generally use three or five floors, and the seventh floor is rarely used. Each layer is divided into lining paper, corrugated paper, core paper and facial paper. The inner paper includes paperboard, kraft paper and corrugated paper for core paper. All kinds of paper have different colors and feel, and the paper produced by different manufacturers is also different. As an indispensable part of modern logistics, packaging carton bears the important responsibility of containing and protecting products and beauty, and the physical performance index of packaging carton becomes the basis of its quality evaluation. The stable working environment ensures the accuracy and reliability of testing data, and senior engineers who have been engaged in carton testing for many years have tested and analyzed the packaging boxes, providing fair and scientific testing data for packaging box suppliers and users. TTS (One Pass Testing) also provides many well-known enterprises with projects such as supplier material screening and tender evaluation.