Hygrade Metal Moulding Manufacturing Corporation is one of the leading manufacturers of insulated glass and window components in the United States. The company offers a selection of products, including air spacers, traditional and contoured muntin bars, insect screen frames, stainless steel track covers and steel reinforcements for vinyl windows and patio doors. Its capabilities include roll forming, punching, drilling, fabrication and notching services. The company provides products in a variety of materials, including copper, brass, stainless steel and aluminum. Hygrade Metal Moulding Manufacturing Corporation additionally offers in-house engineering, tooling, customized design, die making and welding services. The company maintains its location in Mount Pleasant, Tenn.