corrugated boxDue to its frequent use in transportation and product protection, there are strict requirements for its own quality. The testing items for cardboard boxes include: compression resistance, edge pressure, adhesive strength, puncture, simulated transportation seismic resistance, drop, etc. The testing instrument display for compressive testing generally has auxiliary structures that can be adjusted uniformly on both the upper and lower sides. During testing, place the cardboard box between two sides and press the surface evenly on the instrument. Apply more force when the cardboard box is crushed during testing. The edge compression strength testing machine tests the vertical compressive strength of cardboard boxes and boards after sampling, generally expressed as pressure/length. Drop testing machine: It simulates the deformation of cardboard boxes when they fall from a height during transportation or handling. The testing methods include: surface drop, edge drop, and corner drop. A cardboard box is a tool made of paper products used for packaging various items. Single pit (3 layers)/double pit (5 layers)/three pit (7 layers)/four pit (9 layers) cardboard boxes, cardboard boxes are subdivided into various types of packaging such as paper boxes, color boxes, color boxes, and oversized odd shaped beer boxes.