Copper wire, that is, linear copper (red copper). Pure copper is rose red, the metal surface is purple after the formation of copper oxide film, so industrial pure copper is often called copper or electrolytic copper.

Aluminum plate is the thickness of more than 0.2mm to less than 500mm, the width of more than 200mm, the length of less than 16m aluminum material is called aluminum sheet or aluminum sheet, below 0.2mm for aluminum,200mm width within the bar or bar.

Aluminum coil is a metal product for flying shear by casting and rolling machine after calendering, drawing and bending.

The main alloying elements are magnesium and silicon, which have excellent processing performance, excellent weldability, extrusion and electroplating, good corrosion resistance, good toughness, easy polishing, color film formation, excellent anodizing effect, and are typical extruded alloys.