1. Printing quality: The pattern handwriting are printed clearly, the chromaticity is consistent, the brightness is bright; the printing position error does exceed 7mm for the large box, the small box does exceed 4mm;

2. Sealing quality: there are no loopholes around the box body, there is no unevenness seam after each box cover is closed;

3. Dimensional tolerance: the inner diameter design dimensional tolerance of the box should be kept within ±5mm for the large box ±3mm for the small box, the overall dimensions are basically the same;

4. Cover folding times: Kunshan corrugated cardboard box swing cover is opened closed 180 degrees reciprocating folding more than 5 times, the total length of cracks in the surface inner layers of the first second types of boxes, the inner layer of the third types of boxes is more than 70mm;

In addition, the jointing specifications are required, the edges are neat, no corners are folded, the box surface is allowed to have obvious damage stains.