Features Wide Range of Applications：The round copper pipe can be made into all kinds of semi-finished products and finished products by cold, warm forging.Copper tube is mainly used for generators, busbar, cable, switchgear, transformers and other electrical equipment. Electrical Conductivity: The copper tube is of excellent electrical conductivity, it can be used in manufacture of wire, cable, brush(electric), etc.The round copper pipe has fine ductility and corrosion resistance and weldability. Thermal Conductivity: The copper tube is of good thermal conductivity, it can be used in manufacture of magnetism instruments or meters that need anti magnetic interference, such as compass, aviation instrument, etc. but poor strength and hardness. Wonderful Plasticity: The copper tube is of wonderful plasticity, it is easy to be machined under hot and cold pressure.The copper pipe can be made into tube, rod, wire, strip, belt, plate, foil, etc. Size Information: About the copper tube,the outer diameter: 4mm / 0.15 inch, inner diameter: 3mm / 0.11inch,thickness: 0.5mm / 0.02 inch,length: 2m / 78.74 inch Description: Copper tube is mainly used for generators, busbar, cable, switchgear, transformers and other electrical equipment. Heat exchange, electrical conductivity and plasticity is good, but poor strength and hardness. Features: Fine ductility and corrosion resistance and weldability. The copper tube can be made into all kinds of semi-finished products and finished products by cold, warm forging. Excellent electrical conductivity, the copper tube can be used in manufacture of wire, cable, brush(electric), etc. Good thermal conductivity, the copper tube can be  used in manufacture of magnetism instruments or meters that need anti magnetic interference, such as compass, aviation instrument, etc. Wonderful plasticity, easy to machining under hot and cold pressure, can be made into tube, rod, wire, strip, belt, plate, foil, etc. Specifications: Material: Copper Outer Diameter: 4mm / 0.15" Inner Diameter: 3mm / 0.11" Thickness: 0.5mm / 0.02" Length: 2m / 78.74" Weight: 115g(approx.) Package Includes: 1 x Copper Tube Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List