TONJA sheet metal processing and polishing process:
Polishing: Buffing means that we are using tumbling hoops, or most polishing products can remove small protrusions at the surface to make the surface more shiny or mirror-like. The polishing process can bring many advantages like increasing surface finishing level, corrosion resistance, wear resistance, fatigue resistance qualities and finally appearance and decoration.
Wire drawing: Wire drawing is a type of polishing that produces a certain surface, with the use of abrasive or sand paper. This makes the surface of the sheet looks beautiful and unique, since it looks different from any other plain surface. Thus the wire drawing allows fabricating object with altered light reflection, reduced glossiness, resist the scratches and stains better, increase the wear and oil resistant of the object.

How to ensure product quality and consistency in Sheet Metal Processing?

In Sheet Metal Processing, ensuring product quality & consistency involves:
Precise process parameter control.
Marketing and sales strategies increase through improving an organization’s equipment and application of technology.
Improvement of the quality control system on a broad scale.
Ongoing employee training,
A proper functioning of internal audit & constant enhancement.
Controlled work environment. 
Customer communication & feedback mechanisms.