Two years when 3D printing just started to fire, the domestic enterprises to do metal 3D printing is indeed relatively small, only a few, basically to the university or scientific research institutes for the technical support. Nowadays, the major laser industry and CNC lathe industry, or self-research, or in the government's support of cooperative research is basically everywhere. But the leading, or the original a few. Application direction in addition to some of the military field, the civilian field we are more optimistic about the application of the medical industry, the main ones are: Xi'an Platinum Lite Laser Forming Technology Co., Ltd., Northwest University of Technology, Professor Huang Weidong team, military and aerospace field to do a very good job, and now the market is more mature. Ltd., Southern Additive Technology Co. Beihang Prof. Wang Huaming team with two listed companies, you can check the details. But it seems to have been so far, there is no mature equipment launched. Wuhan Binhu Electromechanical Technology Industry Co., Ltd, Huazhong University of Science and Technology, Prof. Shi Yusheng team. Domestic relatively early to start 3D printing, is also relatively early to market metal 3D printing equipment. But now it seems that the Huaxue school-run enterprise reorganization, to be newly formed by the Huaxue 3D acquisition. Guangdong Xindaya 3D Technology Co., Ltd, South China University of Technology, Prof. Yang Yongqiang team. Metal 3D printing field, they do well in the medical market. Above these, is the domestic metal 3D printing technology representatives, but also self-developed equipment representatives, as for many other companies claimed metal 3D printing, many are bought some EOS, Renishaw and other machines to do some processing services to be honest, these machines are not cheap, a large several million, the price is twice the domestic equipment.