Shangdong huayou chemistry co.,ltd.(original mountain donghoa friend science and technology service center) is by develops, the production water treatment chemical specialized producer primarily and applies the service provider. for 18 years, the company with the shandong university, the shandong normal university and so on many universities and the scientific research courtyard has maintained the close cooperation throughout; has the specialized water treatment medicinal preparation synthesis, to apply the laboratory and a specialized scientific research troop; the development has produced eight series nearly hundred kind of water treatment medicament successively. the company has two production bases, yearly produces the 20000t water treatment chemical the scale of production. the product quality has achieved the international standard.