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Among modeling materials, most of the raw sand, clay and mixed materials are non-uniform materials. In the "Test Method of raw sand and mixed materials for Casting" national GB2684-81, it is specified how to select raw sand and mixed samples, and the samples with loose samples can be obtained after separation by the sampler in a small number, more uniform and representative samples. |
Among modeling materials, most of the raw sand, clay and mixed materials are non-uniform materials. In the "Test Method of raw sand and mixed materials for Casting" national GB2684-81, it is specified how to select raw sand and mixed samples, and the samples with loose samples can be obtained after separation by the sampler in a small number, more uniform and representative samples. |
Among modeling materials, most of the raw sand, clay and mixed materials are non-uniform materials. In the "Test Method of raw sand and mixed materials for Casting" national GB2684-81, it is specified how to select raw sand and mixed samples, and the samples with loose samples can be obtained after separation by the sampler in a small number, more uniform and representative samples. |