It is related to the depth of KO and the opening area. The shrinkage of transparent material and black material is also different. There are also temperature and pressure adjustment and blowing time. It has an impact on the wall thickness. The selection of material strip thickness should be determined according to the specific situation. If it is thin, the forming strength is not enough, and the cost is too thick.

Moreover, the selection of material thickness also has an impact on the mold design. If it is not selected correctly, the dimensions of AO and Bo are not within the design range.