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.