Dufrane Capstone, established in Monterrey, Mexico  as Capstone Equipment, was formed to provide expert engineering design and fabrication services to the US, Mexico and South America markets. We specialize in high-quality design, manufacturing and fabrication of critical components for global applications. With extensive experience on custom piping systems, process skids, pressure vessels, acoustic silencers and baffles, lined and unlined stacks and ductwork, as well as custom equipment, we bring innovation and precision to every project.