Surface Roughness Comparison Sample Block Notebook Sample 30 Blocks Ra0.05-12.5mm Roughness Sample Block Gauge

Type of surface roughne comparison model the hined surface (outside the car park outside the park, planing, grinding, milling, boring hole, flat milling, end milling, grinding), wire cutting, EDM, polishing, casting sand, steel shot , sand surface and polishing surface etc.. It is through the visual and tactile, use the comparative method to check the workpiece to calibrate the surface roughne, and provide guidance for the design of specific proceing methods and the degree of roughne and the intuitive feeling and appearance characteristics can also be used as visual s in mechanical profeional colleges. Its characteristic parameter is the arithmetic mean deviation Ra of the surface profile. It fully conforms to the national standards GB-6060-2, 3, 4, 5 and the national verification regulations JJG102 technical requirements. Main features: The surface roughne comparison template, the material is nickel alloy, adopts the precision electroforming tion proce, advanced technology, stable quality, the most complete specifications

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