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See Chinese contents: GB/T 40067-2021 GB/T 40067-2021: Microstructure and defect determination of tungsten carbide powder
This Standard specifies the scanning electron microscope detection method for microstructure observation and defect analysis of tungsten carbide powder. This Standard is applicable to the scanning electron microscope detection of the microstructure and defect of tungsten carbide power with a particle size of 0.1 ??m ~ 0.5 ??m.
