... 2. Operate conveniently 3. high efficiency Rotary Kiln Cooler Machine with ISO CertificateApplication:1. Drum cooling machine is a kind of handling ... is widely used in building material, metallurgy, food, chemical, coal, medicine, mining industry.3. Generally, adapt to granular material, also can ... fluctuation range on operation, convenient operation. Rotary Kiln Cooler Machine with ISO Certificate