Liuzhou Jin Mao Group the manufacturer of blades/cutting edges for loader, roller, excavator etc. We have the ability to produce the wear-resistant steel which surface hardness is 39~47 HRC. Jin Mao JM-NM400, JM-NM450 wear-resistant steel is not only high hardness, but also excellent in tensile properties, impact properties, wear-resisting property, and welding performance, are suitable for a variety of conditions. 2000 employees will service to you.We are confident to our products with the good quality and competitive price.