1. The choice of paper quality, including the surface material (special paper, leather-filled paper, PU leather, coated paper, pink paper).
2. The choice of embryo body material (gray card, single white card, double white card, double copper card, single copper card, environmentally friendly plastic embryo, etc.).
3. Make knife molds, and test beer and material test packages. After confirming the technology and practice, the materials will be cut and prepared in batches.
4. The packaging box is assembled and hand-made in the assembly workshop, and the finished product is packaged.
