Aopin Brass Round Tube Copper Pipe ID 3mm / 3/25" x OD 4mm / 4/25" Hollow Copper Tubing - 300mm / 1 Ft / 12 in Length for Refrigerator Capillary Tubing, Cooling Systems, Wind Chimes 4 Pcs

• ✔️Size: Inner Diameter: 3mm / 3/25", Outer Diameter : 4mm / 4/25", Length: 300mm / 1 Ft / 12 In.
• ✔️Application Range: Due to the good plasticity and ductility of brass pipes, brass pipes are often used in refrigerator capillary tubes, pump lubrication systems, oil pressure systems, instrument pressure measurement, cooling systems, refrigerator / freezer / air conditioning heat conversion and other fields. At the same time, it can also be made into wind chimes, handicrafts, car models, mural decorations, wooden frames, gardening products, etc. It is deeply loved by DIY enthusiasts.
• ✔️Material: Use safe and high quality brass (copper content up to about 60%), good thermal conductivity, great electrical conductivity, airtightness and high strength. Because of the strong and corrosion resistant characteristics of brass, it becomes the tap water of the house. The first choice for installation of piping, heating and cooling piping.
• ✔️Performance: Seamless pressing and integrated molding, smooth surface, no joints, light and convenient for replacement and maintenance. Easy to install.
• ✔️If you want to make crafts, it is recommended to polish the surface of the copper pipe that is easy to oxidize, otherwise rust will affect the appearance!

Cooling capillary tube for air conditioner / refrigerator / freezer Our brass pipes have good electrical and thermal conductivity, excellent cutting performance, excellent ductility, and excellent sealing properties. They are easy to heat and cold press, and have uniform color. They can be used for welding, punching or secondary processing. Used to make car models, mural decorations, wooden frames, gardening products It has bright color, smooth surface, high reliability, easy to connect to other parts, environmentally friendly materials, and can be recycled and reused. Note: The artwork needs to be polished with sandpaper first, otherwise the surface will rust and affect the appearance. When copper pipes need to be welded, the welding position should be polished before welding.