Wieland as a manufacturer of our milling machine materials uses only raw materials and before products of highest purity and quality.  Permanent quality control before, during and after the manufacture processes give us as a processor the security to receive persistently high quality of materials.   Every single blank individually is surveyed, therefore highest passport accuracy of the milling machine works and process security is guaranteed here in the laboratory.  Every blank is how according to MPG (German Medical Devices Act) demanded, back actionable - and that until to the exit material.