1) The size of the cut size is inappropriate, and the correct cut size is not made according to the sample, resulting in gaps.
2) There is an error between the labeling position and the designed position. The label is not correctly labeled according to the designed position, and the labeling position is higher or lower than the designed position.
3) Shrinkage ratio. Injection molding machines have different shrinkage ratios and require multiple proofing tests.