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Wallchart of Tool and Steel Micro-organizational Gold Rating Standard 8

Wallchart of the Tool Steel Micro-organization Gold Rating Standard 8


1 Alloy tool steel micro-organization rating (GB/T1299-2000)

Jollion Organisation

       Net carbon level

    

 2 High-speed tool steel large-scale carbon rating (GB/T9943-2008)

   Level I chart: Tungsten is a large agular carbon grade of high-speed steel tools

   Level 2: Molybdenum high-speed instrument wire large particles carbon grade


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