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Container pretreatment is one of the key technologies in container manufacturing and the first step in container manufacturing. Pretreatment quality is directly related to the manufacturing quality and service life of the container, so all the container o

1、 Abrasive is defined as the granular material that can clean, cut, abrade, scour or change the surface state of the workpiece under the promotion of compressed air, water flow or polishing head and has a certain speed. Abrasive has natural