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General foundation and technology 1.GB/T 5611-1998:Foundry terminology 2.GB/T 5678-1985:Method for sampling cast alloys for spectrochemical analysis 3.GB/T 6060.1-1997:Roughness comparison specimens-Cast surfaces
General foundation and technology 1.GB/T 5611-1998: Foundry terminology 2.GB/T 5678-1985: Method for sampling cast alloys for spectrochemical analysis 3.GB/T 6060.1-1997: Roughness comparison specimens-Cast surfaces