About AMS Accurate Metal Stamping offers a unique combination of services and capabilities. AMS successfully performs fabrication, powder coating, electronic integration, inspection, and fabricated parts, all under one roof. This combination of services has led to AMS’s reputation in supplying quality products at competitive prices, on budget, and on time. American-owned, America-based. AMS is your single source for precision sheet metal fabrication and powder coat finishing servicing many industries including the following.