A hollow aluminum casting case produced with the cold-box core-making process.
Polishless case achieved by minimizing resin additives and eliminating residual sand.

The cold-box process fills the pattern with sand using an air set process, enabling the manufacture of core and other intricate shapes with surfaces smoother than those achieved by human hands.
Miura uses manmade sand, resulting in superior castings for products requiring highly smooth surfaces and eliminating the need for polishing.