... 3.Continuous rotation 4.Automatic operation Spiral Machine/Screen Centrifuge Machine Model PWC centrifuge is a type of ... filtrating medium and is discharging out of the machine, while the solid-phase material is retained inside ... ammonia sulfate, ammonium thiosulfate, anthracene, aspirin, bisphenol, borax, calcium formate, carboxymethyl cellulose, cellulose, celluloid wool, cellulose wool, chocolate ...