... 3.CE, ISO9000 certificate A: Drum wood chipper is mainly used to chip big wood logs into wood chipps or pieces, the thicknessof last ... cabinet. B:To be frankly, the wear part of drum wood chipper is grind knives , but our grind knives has long time ... , very conveient to repair and operate . My dear friend, GX wood chipper has limited input feeding size, please let me know raw ...