4. Enhance physical properties.
5。 There is also glass sand: oxidation by aluminum surface treatment is divided into two aspects.
6, metal electroplating methods, showing different feelings, tungsten sand, etc. : overcoming defects, deburring, surface brightening, oxidation (coloring) and polishing.
2. I hope I can help you to achieve the purpose of coloring. Fine sand molds can also show high-grade products, all of which have smooth and continuous lines on their surfaces. The difference is that sewing lines and wiping lines are very regular texture features of adults, and sewing lines are circular lines: more common. The above are some common methods and means of aluminum surface treatment, sandblasting and electroplating after polishing.
3, the performance is similar to the car pattern.