SEMSA is a machine shop in Monterrey, Nuevo Leon committed to achieving and guaranteeing the highest quality standards through continuously improved methods and state-of-the-art technology. With expertise in process design, we have mastered high precision, close tolerances and superior finishes. Over 20 years of experience in the machining industry, constant certification, training, development, and innovation grant our shop as a more than reliable supplier for hydraulic, aerospace, automotive, oil & gas, and electrical applications.