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Manufacture

what is china clay
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What Is China Clay?

China clay is a type of clay first used by the Chinese for making chinaware and porcelain. From the hill, Kao-ling, close to the…

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What Is a Papier-mâché?

What Is a Papier-mâché? The name papier-mâché alternatively, paper-mache, is French and means “chewed paper”. Although the art of making articles of papier-mâché, beautifully…

who first used keys
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Who First Used Keys?

The first known form of lock and key was used by the Assyrians in the Middle East about 4,000 years ago. This was revealed by the discovery