... closed-loop force sensor control system 10 class Test force selection, 14 class test scale robust construction, good rigidity, accurate, ... smart tips, easy to operate accuracy in accordance with GB/T231.2 ISO6506-22. Range of applications determination of ... precision measurement3. Main accessories Big flat test bench: 1 setSmall flat test bench: 1 setV-shaped test bench: 1 setSteel ball indenter: Φ2.5 ...