The circuit plays the role of conveying current and connecting electrical equipment. 1Pcs tinned tin plated copper flat bus bar c110 Cu, 3mm x 20mm x 66., 14 inch / 1680mm long, about T 3/25 x W 4/5 Tinned Copper Bus Bar Coavoo Tinned Copper Flat Bar 3mm X 20mm X 1180mm 0.12 Pure Copper Flat Bar Stock Due to plated with tin, with better oxidation and corrosion resistance (Nowadays, rounded copper bars are generally used to avoid tip discharge). Specifications Brand: CoavooStyle: 3mm x 20mm (Thickness and width, almost equal as 0., 12 x 0., 8 or 3/25 x 4/5)Item: 1Pcs tinned tin plated Copper flat bus barCustomization: We can provide tin plated copper bar, nickel plated copper bar and pure copper bar, make holes and any other customized requirements. They are made of copper and have rectangular or chamfered (rounded) rectangular cross-sections. Copper bars are also called copper bus bars or copper buss bars.