Teaching chalk and the German brand _ _ Baiyun District Kingsway teaching chalk provided by Shenzhen Industrial Co., Ltd. and the German Kingsway. Shenzhen and Germany Kingsway Industrial Co., Ltd. (hedehuifu.1688.com) is a professional "chalk, chalk graffiti, teaching chalk, Yi Nina chalk, chalk graffiti home" company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so "and the German Kingsway" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the rich and Dorsey won the trust of customers congregation in chalk, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Shenzhen Industrial Co., Ltd. and the German Kingsway to introduce you to chalk knowledge, writing on the blackboard with chalk, gypsum powder is coated on the blackboard. When wiping the blackboard, plaster dust (chalk) flying in the air after falling short in the object plane and on the ground near the blackboard. The larger the particle, and more than 100 microns in teaching chalk agency, heavier, falling faster, floating in the air a short time. Multi chalk crayons, colored chalk, chalk graffiti, graffiti chalk color of choice and Germany Kingsway Industries Limited. Shenzhen and Germany Kingsway Industrial Co., Ltd. to bring common sense despite chalk chalk harmless to humans, but tens of millions of Chinese teaching chalk processing, every day teaching chalk blackboard with chalk for every day life Teaching in chalk dust chalk sales after wiping the blackboard, and can still cause nose, throat, throat discomfort. Non-toxic chalk completely solve this health problem, it is not dust residues in the human body, can be directly excreted through human excretion. Non-toxic chalk dust, and more chalk crayons, colored chalk, chalk graffiti, graffiti chalk color of choice and Germany Kingsway Industries Limited.