| Name | aluminium ruler |
| Color | pink，bule，green，yellow |
| Promotion Ruler | yes |
| Length | 15cm，20cm，30cm |
| Material | aluminium |
| Feature | Eco-friendly |
| Function | Measurement，Advertising |
| Ruler Type | Straight ruler |
| Packing | 1pc/opp bag |
Ruler production
Rulers used in different occasions have different requirements and standards. If the value is required to be more accurate, then higher technology is required, and it must be produced by machine. In addition to the accuracy of the value, the second focus is the quality of the engraved value. Generally, a layer of protective film will be added after engraving the value. The third point is the choice of materials. Nowadays, they are divided into plastic, metal, and wooden rulers. Plastic rulers are mainly stationery used by ordinary students, and metal rulers are more. Used in industry, and wooden rulers are mainly used for teaching.
Ruler daily protection
The most taboo of the ruler is the scratching and blurring of the engraved value. Therefore, the ruler has become the most cared item in the stationery.
