... quality material 3.Low price 4.SKDII MATERIAL Industrial waste shredder 1. This machine is suitable to ... cutting knife edge,when the rotary blade is wear,it can be rotated to 90 degree,then ... cutting knife edge,when the fixed blade is wear,it can be rotated to 180 degree,then ... automatic if something unexpected happen,with very high safety service. special thick,thoughness,large-scale materialBig head ...