Qinhuangdao Oulu Chem-industry Machinery Co., Ltd. Located in picturesque seaside city Qinhuangdao is a specialized manufacturer that produces machines used in chemistry industry. Our products first passed En-gland NQA International Quality Authentication arming the manufacturers of the same trade, and we are very strict in quality standard. Our main products include SG series of three roll mills, GFS series of high-speed dispersers, LKS series of vertical sand mills, WMS series of horizontal air tight sand mills, FY series of reaction cauldrons, LQM series of ball mills, LBS series of vertical air-tight sand mills.