Technical requirements:
1. The figure above is a graphic engraved on the date stamp; The font or graphic engraved on the date stamp must be on the reverse side.
2. After carving, it is necessary to clean up the residue inside the font.
3. When carving, the arrow should be aligned with the font for carving.
4. If the customer has special requirements for carving depth, it can be executed according to the customer's requirements.
5. The engraved font and the cut surface of the arrow should be smooth
