Shijazhuang Jia Yi Tech. Development Co., Ltd. (Jia Yi Toner Factory) is a high technology enterprise that devotes to the production and sales of printing consumables. In 2010, for exporting more products, we have established DeeperWin Trading Co., Ltd. We are professionally engaged in research & manufacture, development, production and sales of electrostatic imaging materials (also called toner powders, toners and laser toners) and supermicro powders. Depending on 8 years' experience of R&D and production, integrating famous and senior research personnel at home and abroad, as...