In the past few years, the metal injection molding has become a competitive small parts manufacturing technology, it has the ability to produce (1) orders no matter large or small batch, (2) the complex shapes, (3) almost all types of materials, including metals, ceramics, intermetallic compound and composite materials. Its key attributes are: (1) the MIM is a repeatable process, used in high temperature alloy made of complex components. (2) the MIM parts almost completely dense, inside has a good mechanical, magnetic, corrosion resistance and sealing performance, can be convenient for plating, heat treatment and machining and other secondary processing. (3) complex shapes are implemented through innovation of mould technology, using technology similar to the plastic injection molding industry. (4) through the multi-cavity mold can achieve high yields.