Hebei Hanwu Cotton Machinery Co., Ltd, established in 1984, has been manufacturing cotton saw since 1997. With fast development in the past decade, it has been integrated into a complete industrial chain, especially in the upper-stream industry of cold rolling strip steel, material for cotton saws. The company is armed with professional processing lines of rolled special steel, consisitent quenched temper and saw production. Therefore, it is able to control its producing quality from the source of industrial chain. The saw industry chain of Hanwu shows unique advantages. The saws are used for cotton Gin machine, Delinter machine, and Cleaner machine. Its teeth point evenly, flatness 0.3mm, hardness of ginning saw: HRC35-45, hardness of delinting saw and cleaner saw: HRC30-40. We at Hanwu are looking forward to establish cooperation with potential partners at home and abroad on the basis of mutual benefit and common development.