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hardness testing equipment instrukart surface
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Surface Roughness Gauge/Ra Rz Roughness Tester (Rz Range: 0.020 to 100 um / 0.780 to 4000 Winch)/Ra Measurement Device (Ra Range: 0.050 to 10 um/1.000 to 400.0uinch); Model: SRT 6200
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