1, materials, components to LOT NO. management, and marked.<br>2, there is the development of batch management standards<br>3, the production machine station stipulates that a machine is only allowed to prepare a maximum of a batch of materials, and has to develop the first clearing machine confirmation mechanism<br>4, the formulation of mixed prohibition 7 principles, publicity on the machine<br>5, the staff to carry out prevention mix training
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