Classification : Copper Coil SGS Copper coil is a highly stable, low maintenance roofing and curtain wall material that is environmentally friendly, safe to use, easy to process and highly resistant to corrosion. Copper coil classification: aluminum bronze coil, brass coil, beryllium bronze coil, tungsten copper coil, copper coil and so on. Commonly used copper coil brands: H62, H65, H68, H70, H80, H90, C2600, C2680, C2700, C5210, etc.