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Mac Cal is a leading vertically integrated manufacturing company based in San Jose, California, with decades of experience serving high-tech industries. Founded in 1964, the company specializes in precision sheet metal fabrication, CNC machining, cable and wire harness assemblies, and… Mac Cal is a leading vertically integrated manufacturing company based in San Jose, California, with decades of experience serving high-tech industries. Founded in 1964, the company specializes in precision sheet metal fabrication, CNC machining, cable and wire harness assemblies, and electro-mechanical manufacturing solutions. With advanced in-house capabilities and modern facilities, Mac Cal supports everything from product design and prototyping to full-scale production, ensuring high-quality results and efficient turnaround times. The company operates under a streamlined, all-in-one manufacturing approach that combines engineering, fabrication, assembly, finishing, and quality control under one roof. This integrated system helps reduce costs, improve efficiency, and maintain strict quality standards across every project. Serving industries such as aerospace, medical, semiconductor, and clean energy, Mac Cal is committed to delivering reliable, cost-effective, and innovative manufacturing solutions while building long-term partnerships with its clients. Read more