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Keywords: Teaching chalk environmental friendly chalk Process chalk Toy chalk Six arrises chalk

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Chalk blown eye treatment?

Come from:本站Click:Update Time:2012-10-27 21:19:19
       The dangers of chalk: chalk harmful, but Environmental friendly chalk! The fine particles of chalk strong germs adsorption ability, the composition of the chalk is an alkaline substance. Harmful bacteria, alkaline substances on the teachers and students of the respiratory system, skin, ear, nose, throat, likely to cause inflammation, dry, atrophy, itching, chapped, lung cancer, emphysema and kidney damage.

       Students and from morning to night in the classroom responsible for the effaceurs task, the greater the health hazards of underage students chalk dust less resistance. It is recommended to use the chalk dust
Keywords:Chalk dust hazards, Environmental friendly chalk, Chi Heng chalk

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