• 发明书法绘画工具――砚台制造工艺以及一种具有保湿效果砚。

    This invention concerns the technology of making inkstones for calligraphers and painters. The clay bearing water or the clay deposited therefrom will be used as raw material.

    youdao

  • 发明书法绘画工具――砚台制造工艺以及一种具有保湿效果砚。

    This invention concerns the technology of making inkstones for calligraphers and painters. The clay bearing water or the clay deposited therefrom will be used as raw material.

    youdao

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