Using the sandblasting machine to sandblast on mold cavity surface with proration of glass sand to achieve VDI texture.

Making the surface have average roughness with 3 kinds of glossness of matt, semi-gloss and gloss.

VDI 3400 Ref.12/ 15/ 18/ 21/ 24/ 27/ 30/ 33/ 36 can be achieved by Sandblasting.

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