Aopin Brass Round Tube Copper Tubing Pipe ID 3.5mm / 7/50" x OD 4.5mm / 9/50" Hollow Copper Tubing Seamless Straight Pipe Tubing - 300mm / 1 Ft / 11.81 In Length For Brake Line, 2 Pcs

Size: Inner Diameter: 3.5mm / 7/50, Outer Diameter : 4.5mm / 9/50, Length: 300mm / 1 Ft / 11.81 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.