In order to ensure the quality of cellophane tape box packing: guangzhou li hui plastic boxes, blister packaging materials products factory always require the use of high-quality PVC, PET, PP (sanding, transparent, twill) environmental protection material, to ensure that the quality of the plastic box at source.Firmly put an end to it, and strengthen the transparency :PET film, PVC film, PP film, film thickness control, positive and negative error absolute control within international standards.