TIG Welder Precision Fabricator MDC Precision is a world leader in delivering high-quality products to the research, semiconductor, aerospace, life sciences, and food processing sectors. Our customers rely on us to provide the precision components that are required for the operation at the atomic scale. We enable innovation by bringing our expertise in vacuum science, ultrapure and ultra-hygienic materials fabrication, ceramic-to-metal sealing along with our design and manufacturing partnerships- all to enable science to change the world for the better.