Circular blades for cutting Wood,Al,Steel,etc. Independent R&D grind machine for grinding teeth Material ... :65Mn HRC:41-45 Circular blades for cutting Wood,Al,Steel,etc. Independent R&D grind machine for grinding teethMaterial:65Mn ... make it according to our customers requirments which includes saw blade ,blade ,saw blades ,saw parts ,diamond saw blade and so on . Yongkang HARD industry grade circular ...