The.DAYU.science and technology limited company is by researches and develops, consumes the material, high technology and new technology comprehensive enterprise and so on chip series product. The main product has supplies the ink system continuously, the persistent effect permanent chip, does not have the sponge ink and so on. The product sells in distant markets domestic and foreign, has the excellent technical level, wins the user communities the faith. The company take "the leading technology, the surmounting quality, satisfaction service" by "the innovation famous product" as an objective. The creation nationality quality product, connects rails with the international expense demand. In this, we by create the high sharp technology qualified famous product back and forth to report the society and the general consumers.