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HNBYLMM Surface Roughness Gauge, Digital Surface Roughness Tester Meter with 13 Parameters, 0.001μm High-Precision, with 5 μm Diamond Sensor, Measurement Range 160μm, for Industrial and Laboratory

HNBYLMM Portable Surface Roughness Tester, LCD Display High Accuracy 0.001μm with 13 Parameters Ra 0.025-12.5 μm Digital Surface Gauge for Industrial and Laboratory Use

Ehlivhall Roughness Comparison Sample for Finish Testing Steel Calibration Test Block with Wooden Case for Lathe Milling Grinding Planer Industrial(Flat grinding)

Ehlivhall Roughness Comparison Sample for Finish Testing Steel Calibration Test Block with Wooden Case for Lathe Milling Grinding Planer Industrial(Lathe)

HNBYLMM Surface Roughness Gauge, Digital Surface Roughness Tester Meter with 0.01μm High-Precision, Ra/Rq 0.05~15.0μm, Rz/Rt 0.1~50.0μm, Data Storage & Output, for Industrial and Laboratory

HuanEssentric 0.01μm Precision Portable Roughness Tester with High Accuracy for Industrial Quality Control,Metal and Non Metal Processed

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