Copper foil is a type of anionic electrolytic material, which is a thin, continuous layer of metal foil deposited on the substrate layer of a circuit board. It serves as a conductive material for PCBs. It is easy to adhere to the insulation layer, accept the printed protective layer, and form a circuit diagram after corrosion.

Copper foil is a type of anionic electrolytic material, which is a thin, continuous layer of metal foil deposited on the substrate layer of a circuit board. It serves as a conductive material for PCBs. It is easy to adhere to the insulation layer, accept the printed protective layer, and form a circuit diagram after corrosion.

Copper foil is a type of anionic electrolytic material, which is a thin, continuous layer of metal foil deposited on the substrate layer of a circuit board. It serves as a conductive material for PCBs. It is easy to adhere to the insulation layer, accept the printed protective layer, and form a circuit diagram after corrosion.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Red copper is industrial pure copper. Due to its rose red color and purple color after the formation of an oxide film on the surface, it is generally referred to as red copper, also known as red copper. It is copper containing a certain amount of oxygen, hence it is also known as oxygen-containing copper, and sometimes can also be considered as a copper alloy.

Brass has extremely good plasticity (the best among brass) and high strength, good machinability, easy welding, very stable for general corrosion, but prone to corrosion cracking; Brass strip is an alloy of copper and zinc, named after its yellow color.

Brass has extremely good plasticity (the best among brass) and high strength, good machinability, easy welding, very stable for general corrosion, but prone to corrosion cracking; Brass strip is an alloy of copper and zinc, named after its yellow color.

Brass has extremely good plasticity (the best among brass) and high strength, good machinability, easy welding, very stable for general corrosion, but prone to corrosion cracking; Brass strip is an alloy of copper and zinc, named after its yellow color.