A raw material ageing ring trough concentric with kiln bottom is arranged on site at inner side of annular kiln bottom and blank making machine is arranged in the center of the site.

在环状窑底内侧的场地设置一个与窑底同心的环形原料陈化仓槽，制坯机设置在场地的中心部。

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Next, he uses a v-chisel to make a trough around the circle, leaving a silver dollar sized center.

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