Round paper tube circular cutting knife blades Material optional: 9CrSi, SKD-11, SKH-51, HSS, Tungsten carbide. Features & Benefits 1 0 production processes to go through for every individual knife. Assuring the ultimate in life time. Lower yearly knife consumption costs. Triple tempered to retain the hardness while toughness kept. Strictly quality control for excellent valve. High precision, high intensity, excellent hardness,small thermal deformation. Matched to their applications. Intregrated output increase. Reduce unsurpassed edge quality. Reward customers with high Productivity. Applications Paper tube, Plastic pipe. Aluminum tube, Aluminum foil, Copper pipe, iron pipe, etc. film, foil, fiber glass, tape, etc. If you have more questions to know ,please contact us . Tel: +86-0769-88014625 Phone Number: +86- 18823852826 Email: info@china-oyea.com 1659590865@qq.com Web: www....