Graffiti chalk Supply | Foshan chalk graffiti | Kingsway chalk dust and Germany (view) are 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 for everyone to share the chemical composition of chalk, chalk is made of calcium sulfate dihydrate (commonly known as gypsum) is made. Various pigments may also be added to make colored chalk. In the production process of the gypsum is heated to a certain temperature, it becomes mature partially dehydrated gypsum chalk graffiti supply, then plaster add water and stir into a paste graffiti chalk outlets, poured into the model solidified. Gypsum plaster reaction becomes ripe for (heating needs): CaSO4 · 2H2O = CaSO4 · H2O + H2O. Add water into gypsum plaster reaction is (room temperature can): CaSO4 · H2O + H2O = CaSO4 · 2H2O. And the German Kingsway Industrial Co., Ltd. is specialized in Ai Nina chalk, chalk graffiti home, crayon and other production and processing, if necessary, please call the contact information on the picture to contact us. Shenzhen Industrial Co., Ltd. and the German Kingsway to bring attention to chalk brush brush, is in the process of writing in different stipple graffiti chalk line pen mention press attention, frustrated, turning, speed and so on. "Mention" is to lift the chalk graffiti chalk wholesale from the board, so that handwriting from coarse to fine (if you pick up a pen last to leave the board, the handwriting on the fine to no); "press" is to chalk heavy press on the plate, making strokes thicker brush mention is often done by the same stroke, as oblique press after skimming the wording is mention, in order to achieve the right upper coarse and fine strokes effect the lower left. The so-called "Dayton" is in the "press" pause on the basis that some of the stippling rounded and powerful. And Germany Kingsway Industrial Co., Ltd. is a major selling chalk, non-toxic chalk, chalk teachers, child chalk graffiti, welcome new and old customers here.