1、Our Factory Rich-Opto is located in the high-developed Zhenjiang city ,Jiangsu.We professionally do the development,production and sales on SLA laser 3D printer and software system.We have the professional R&D team on electronics,optics,software and precision machinery.After years of painstaking research and development,we have produced the integrated SLA laser 3D printer and software system. website:http://www.rich-opto3d.com/