1) This machine is available to cut various materials, such as cotton, wool, linen, silk, chemical fiber, leather, etc. 2) This machine has features of concentrated lubrication, neat cutting section, available for curvilinear cutting, even for small curvature radius, low noise, steady running, easy to operate, high efficiency, auto-sharpening, etc. CZD-3 auto sharpening dayang phlps eastman straight knife apparel fabric cloth cutting machine cutter