Ball valve laser mask Get a metal mask. Metal mask spraying, powder welding, flame spraying, HVOF, PTA, laser cladding and cold spraying are used in a wide variety of spray applications, from flame spray, powder welding, PTA and laser to reduce wear and corrosion in ball protection valve applications. Valves in the petrochemical industry surface treatment of ball parts in ball valves. Perfect Valve Powder spray. Choice of comfort We also have metallographic laboratories that can be used to analyze the root cause of problems more accurately.