Home › Blog › Buying Guide › From Factory Floor to Your Workshop: Evaluating a Pre-Owned , Used , Secondhand, Surplus CNC Machines Before Purchase DOOSAN V850 CNC Vertical Lathe made in South of Korea Here’s a detailed guide you can use when evaluating a pre-owned / surplus Doosan V850 vertical lathe (CNC vertical turning lathe, made in South Korea) — from pre-screening all the way through on-site testing, measurement, and decision making....