Professional and non-toxic, non-toxic chalk chalk _ _ Zhongshan and Germany Kingsway

Shenzhen Kingsway Industrial Co., Ltd. and Germany to share with chalk, chalk is made from plaster. Gypsum composition is calcium sulfate. Non-toxic chalk colored plaster stable performance, non-toxic. For thousands of years, non-toxic chalk which TCM with gypsum (calcium sulfate crystal water containing CaSO - 4 · 2H2O) decoction, topical calcined gypsum (plaster) wrap the affected area. Thought to cool fever, thirst, sore myogenic. Shenzhen Kingsway Industrial Co., Ltd. and Germany to introduce chalk knowledge, according to labor and health information, production and living environment of dust particles in the air, 10 to 20 microns in diameter or more, through the nose is most timely suction nose, nose, throat throat stop, attached to the small airways and alveolar mucosa. If a substance is harmful to the body (such as silica, asbestos), alveoli and small airways in accumulated more, it will cause damage to the human body. From the foregoing professional non-toxic chalk, chalk dust particles larger, mostly non-toxic and will not be drawn into the lower respiratory tract chalk, coupled with the plaster itself toxic to humans, the medical profession has also not yet cause lung disease due to inhalation of chalk reported. Chinese labor in the health sector, the relevant provisions of occupational pneumoconiosis, nor will chalk as a cause of lung. More chalk crayons, colored chalk, chalk graffiti, graffiti chalk color of choice and Germany Kingsway Industrial Co., Ltd. Professional and non-toxic, non-toxic chalk chalk Zhongshan _ _ and Germany are provided by Shenzhen Kingsway Kingsway Industrial Co., Ltd. and Germany. Shenzhen and Germany Kingsway Industrial Co. (hedehuifu.com) strong, credible, in Shenzhen, Guangdong chalk industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement and innovative ideas will lead Germany Kingsway and you hand into the brilliant, for a better future!