Home › Blog › Buying Guide › From Factory Floor to Your Workshop: Evaluating a Pre-Owned , Used , Secondhand, Surplus CNC Machines Before Purchase WALDRICH WSIII40 Roll Grinder made in Germany Here is a robust, multi-phase guide you can use when evaluating a pre-owned / surplus WALDRICH WSIII40 roll grinder (made in Germany) — from initial screening through on-site testing, measurement, and final decision....