Beijing North Hengli Science and Technology Development Co., Ltd. by the Chinese Academy of weapons, weapons technology to promote China jointly founded the high-tech enterprises. Companies to promote the progress of the design and the traditional casting industry, accelerate scientific and technological achievements into the goal, the use of powerful technological advantages successfully developed a series of domestic initiative, high technology content, good market prospects of high-tech products, and the fastest speed products to market. In China, from the mid-1990s to the SLS technology research, in 2000 he developed the first localization of SLS rapid prototyping equipment and industrial transformation. HL-500 rapid prototyping machine is Hengli main push model. This machine, the application of selective sintering rapid prototyping technology, the complexity of arbitrary three-dimensional CAD model with a laser beam or other means of direct processing of the material or parts of four-body model. Forming a wide range of low cost, high utilization, no waste. And the use of three-cylinder vehicle glad speed printing technology to directly produce any complex parts, greatly reducing the new product development cycle and reduce development costs, and the production process without cutting noiseless, green and environmentally friendly ,, very effective improve the competitiveness of enterprises, in addition, the Chinese Academy of Sciences as well as the North Hengli independent research and development of weapons of casting simulation software castsoft, effectively casting the casting process predict and display the flow field and temperature field of casting defects that may exist. Only rent amount up to 95% across the country with more than 650 foundry. Details of consultation 18,233,177,200 Liu