The ratio of coated cemented carbide tools in metal processing industry is increasing steadily. In recent 10 years, its quality and performance have been significantly improved. On the one hand, due to the quality improvement of the coating , it will be better to control porosity and thickness; on the other hand, the metallurgical technology between the coating and the substrate interface has also been improved, therefore can increase the adhesion of the coating and prevent the interfacial reaction that reduces the strength. Increasing cutting speed can significantly improve productivity, and the use of coated tools is the most effective way to reduce costs.

Using the principle of discrete-stacking, 3D printing technology is the manufacturing method to produce molded solid parts by layer-by-layer accumulation way based on three-dimensional model. For the rapid proto typing advantage of complex part, it provides the solution for the preparation of cemented carbide parts to a certain extent. After recent years of development, printing technology has played an increasingly important role in the preparation of precision parts.

Integrated circuit board (PCB) is the key component of electronic information industry chain, as a key tool of PCB micro hole processing and printing, ultra-fine integrated circuit board micro drillcan only be made by ultra-fine grained cemented carbide.

Nitrogen Oxides are a family of poisonous, highly reactive gases. These gases form when fuel is burned at high temperatures. It is major source is from vehicles, trucks, industry facilities and so on.