Our enhancement depends around the sophisticated devices ,exceptional talents and repeatedly strengthened technology forces for Grit Classifier Wiki, Spare Part Screw Press, Oxygen Diffuser, Micro Dosing Pump,Oxygen Diffuser Stone. All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands. The product will supply to all over the world, such as Europe, America, Australia,Sri Lanka, Algeria,French, Malawi.All these products are manufactured in our factory located in China. So we can guarantee our quality seriously and availably. Within these four years we sell not only our products but also our service to clients throughout the world.