单一颜色的打火机整体手感光滑，外观简洁
通常，在打火机的生产过程中会添加不同颜色的色粉来改变打火机的颜色。
工厂可以定制生产多种型号的打火机。
- A single color lighter has a smooth overall feel and a simple appearance
- Usually, different colored powders are added during the production process of lighters to change their color.
- The factory can customize and produce multiple models of lighters.
