... from China 1.Certificate: ISO9001:2000 2.First class materials 3.Yuhui, let quality speak Rotary dryer equipment from ... yellow sand used in dry powder and mortar, various specifications of sand used in a foundry industry, ... yellow sand used in dry powder and mortar, various specifications of sand used in a foundry industry ... ton materials.5. The fuel can be coal, oil, natural gas and so on, massively dry ...