ALONIZING

Treatment of metal tubular products, namely, furnace tubes, reformer tubes, heat exchanger tubes, waste gas heater tubes, line pipe and [ downhole tubes ] for wells and production vessels, [ sulphur condensors and ] piping used in oil and chemical production and [ power generation and ] wrought metal products, namely, bars, rods, plates and sheets, [ panels,waterwell panels, ] and wire screens [ and metal castings ] by adding aluminum or aluminum and silicon corrosion and erosion preventive diffusion coatings