Shenzhen Kingsway Industrial Co., Ltd. and Germany to introduce you to the history of chalk in the 19th century began to use black painted on wood, is to protect the wood from erosion. And also for the release of key issues, the role of relatively similar announcement bar. But then the "Blackboard" is very small, and is not intended to be used in teaching. But by the mid-19th century, the university began to flourish around the world, teaching teachers originally dictated that students remember the mouth, because the increase in the number of students and more apparent that it's non-toxic chalk wholesale inconvenient, so in Europe, in the United States are beginning to universal originally small, non-stationary black bulletin board increases for the teachers with convenience copying distant student oral teaching. Chalk, chalk dust, non-toxic, teachers chalk, chalk graffiti children preferred Kingsway Industrial Co., Ltd. and Germany. Shenzhen Kingsway Industrial Co., Ltd. and Germany to introduce you to the blackboard chalk brush is usually standing posture because writing, and the board is parallel with the body (when writing brush calligraphy pen calligraphy and other non-toxic chalk, paper and body almost vertical), so to pay attention to stabilize, feet flat on the floor shoulder width apart and non-toxic chalk use chalk enforcement arm natural bent (sometimes written height can also be straight) non-toxic chalk dust, and the other arm down (do not make dance posture), the first to be positive, the first regular sight level, Blackboard also easy to ping. More chalk crayons, colored chalk, chalk graffiti, graffiti chalk color of choice and Germany Kingsway Industrial Co., Ltd. Non-toxic chalk processing, and the German Kingsway (certified), non-toxic chalk is provided by Shenzhen Kingsway Industrial Co., Ltd. and Germany. Shenzhen and Germany Kingsway Industrial Co. (hedehuifu.com) Guangdong Shenzhen, chalk leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. And the German leadership at Kingsway staff warmly welcome all inquiries to discuss, create and Germany Kingsway a better future.