Home › Blog › Buying Guide › Industrial Insights: How to Spot Quality in Pre-Owned, Used, Secondhand, Surplus CNC Equipment Before Purchase Shehzhen Hypet GYZS 80/173 Single Screw Extruder made in China When you’re evaluating pre-owned, used, surplus CNC or extrusion equipment (or more generally, industrial machinery), having a systematic checklist and a critical eye is essential....