Copper coil generally refers to a coil made of copper, which is commonly used in various electrical and electronic applications. It can be made from different copper alloys, including pure copper or various copper-based alloys such as brass，bronze.

C27000 brass has properties between H68 and H62, and is cheaper in price than H68. It has high strength and plasticity, and can withstand cold and hot pressure processing well, with a tendency to corrode and rupture

C26000 brass is a common brass alloy that exhibits good electrical conductivity, machinability, and some degree of corrosion resistance. It is widely used in various industries and fields.

C11000 copper coil is a type of pure copper wire, also known as electronic grade copper. It is composed of pure copper, with a copper content of over 99.9% and minimal alloying elements. C11000 copper coil exhibits excellent electrical conductivity, good workability, and high thermal and electrical conductivity.

C10100 copper coil is a type of oxygen-free copper wire. It is also known as OFE (Oxygen-Free Electronic) copper or UNS C10100. C10100 copper is characterized by its high purity, with a minimum copper content of 99.99%. It contains extremely low levels of oxygen, which help improve its electrical conductivity and corrosion resistance.

C14420 is a low tin high conductivity copper alloy. The strength and hardness of this alloy are higher than pure copper, and it has very high conductivity, with a slightly lower resistivity than pure copper. It is an ideal choice for manufacturing high demand electronic and conductive devices.

C12000 (ASTM) and TP1 (GB) copper coil is a phosphorus deoxidized copper material,This copper alloy has a low phosphorus content, usually less than 0.015%. C12000/TP1 low phosphorus copper has good conductivity and thermal conductivity, as well as excellent plasticity and welding performance.