1. Methods to eliminate dents in products
2. Methods to eliminate material shortage
3. Method of eliminating silver bar mark
4. Method of eliminating flash of products
5. Methods to eliminate deformation of products
6. Methods to eliminate cracks in products
7. Methods to eliminate stress cracking of products
8. The method of eliminating the cracks in net packing of products
9. Methods to eliminate whitening of products
10. Method of eliminating fusion mark of products
11. Method of eliminating wave current in products
12. Methods to eliminate paste spots of products
13. Method of eliminating black stripe in products
14. Methods to eliminate uneven color of products
15. Methods to eliminate poor finish of products
16. Methods to eliminate cavitation of products
17. The method of eliminating the swirling pattern of products
18. Methods of eliminating product embrittlement
19. The method of eliminating the whitening and embrittlement of broken materials
20. Methods of eliminating foreign matters in products
