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Ellison Surface Technologies is a manufacturer of thermal spray coating and performance coating solutions. Its offerings include high velocity oxy-fuel, plasma spray, flame spray, vapor phase aluminizing, solid/dry film lubricants, powder coating, NDT, heat treating and brazing, electric arc, dense vertically-cracked thermal barrier coating, and hard chrome replacement. The company provides value-added services such as fluorescent penetrant inspection, certified metallurgical labs, cleaning and stripping lines, fabrication cells, and blue light 3D scanning. It serves aerospace, power generation, automotive, elastomers, military and defense, industrial, heavy equipment, foundries, oil and gas, steel and other industries. It is based in Mason, Ohio, with locations in Hebron, Kentucky; North Clarendon, Vermont; Bromont, Canada; Guaymas, Mexico; and Wartburg, Tennessee. Ellison Surface Technologies operates as a provider of engineered surface coating solutions and services.

Nitrex Metal Technologies is a privately held company that specializes in precision gas nitriding and ferritic nitrocarburizing in both batch and continuous forms.

Carolina Commercial Heat Treating provides metallurigical heat treating services for customers in a wide variety of industries.

Founded in 1929, Curtiss-Wright designs, manufactures, and services precision components and engineered products for global markets including aerospace, defense, industrial, and power generation. With over 200 facilities worldwide, the company offers a broad range of solutions such as electronic controls, valves, actuators, pumps, and other specialized equipment.

Nitruvid S.A is a privately held company that provides renowned plasma assisted nitriding processes for stainless steel applications.

Ningbo Jiangdong Ruidahong Heat Treatment is a privately held company that provides protective atmosphere heat treatment services and testing support.