Heat Exchanger Special Tubes Thermal Efficient Tube High quality tubes used for the production of heat exchangers bring the best efficiency Low Finned Tube Tubes finned by rolling screw Inner Finned Tube Tubes ribbed inside Corrugated Pipe Pipes with spiral helix Rifled Tube Tubes with spiral ribs inside Perlawanan Duplex Tube (Double Layer) Molten Alminum Plated Pipe Majelis U-bending Pipe Swaging