... 2.Easy operation, long working Stainless-Steel piece Grinder Machine Metal Material Grinder Inform us the follow figures:1.feeding material2 ... plastic, PVC plastic, PVC, PS, gear material, raw iron, steel scrap, shell, crushed corn cob and other materials.Feature:High-speed ... the millstoneHigh effective ,high outputEasy operation, long working life Waste Metal Grinder Machine