two types of impurities for standard 7
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Impurities, present in various textiles, are of two types: natural and added. Natural fibres like cotton, wool, silk, etc., are grown under natural conditions, during which these fibres acquire natural impurities like dirt, dust, minerals, fatty matters, etc.
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Impurities, present in various textiles, are of two types: natural and added. Natural fibres like cotton, wool, silk, etc., are grown under natural conditions, during which these fibres acquire natural impurities like dirt, dust, minerals, fatty matters, etc.
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