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متالوژی::
خاک چینی
There are 16 terms currently used in industrial circle - china clay or kaolin, ball clay, fire clay, sodium bentonite, calcium bentonite or pascalite, attapulgite or fuller's earth, brick clay, stoneware clay, pipe clay, roofing tile clay, pottery clay, terracotta clay, terracotta clay shale, brick-making clay shale, flint clay and pozzolanic clay.
China clay is another clay with a long history of use in China.
, around the first half of 10th century, porcelain (a product based on china clay) made its appearance.
This porcelain grade clay became intimately associated with China and the outside world started calling this type of clay, wherever it was found, china clay.
Compared to pottery clay, terracotta clay, tile clay, fuller's earth and china clay, the history of bentonite is very recent.
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