aluminium machining parts 1.material:al6061; 2.process:cnc turning; 3.precision:0.01mm. aluminium machining parts 1.Ningbo Junhua machinery co.,ltd is specialized in producing casting products and machining part.Mainly products: Aluminum casting,Sand casting,Iron casting, Steel casting and Customized and OEM offered. 2.Our product process we can offer are rough casting, machining, Surface ...