Principle of size calculation:
1. The customer specifies the inner diameter size, then the size calculation is added from the inside to the outside.
2. The customer specifies the outer diameter size, and the size calculation is the same as the outside to the inside.
Factors to be considered in calculating the size:
The thickness of the substrate, paper, and glue, if necessary, should consider the degree of expansion and contraction of the paper after the glue has absorbed water. Especially paper that is directly pasted without film and whose deformation is severely affected by moisture.
Quality Requirements：
1. The size meets the requirements.
2. The tissue paper is smooth, without blistering and obvious scratches.
3. No ash, no bursting or cracking at the corners.
4. Accurate positioning of accessories and firm attachment.
5. The surface is clean without obvious stains.
6. The edging is flat, no wrinkles, or hanging in the air.
7. The finished product has no peculiar smell and mildew.
