Our company specializes in contract responsibility system. metal surface treatment of the various types of spare parts.using oxygen.acetylene flame spraying.spray welding.supersonic flame spraying.vacuum.high-frequency induction.plasma beam of carbide and nitride such as QPQ advanced technology.surface modification of materials to improve the hardness.change the surface materials.access to Abrasive wear.corrosion resistance and prevent occlusion and other characteristics.multiply the extension of equipment service life.