The main purpose of cold-rolled oriented silicon steel strip is for transformer manufacturing, so it is also called cold-rolled transformer silicon steel. Compared with cold-rolled non-oriented silicon steel, oriented silicon steel has strong magnetic directionality; it has superior high magnetic permeability and low loss characteristics in the rolling direction of easy magnetization. The iron loss of the oriented steel strip in the rolling direction is only 1/3 of the transverse direction, the magnetic permeability ratio is 6:1, and the iron loss is about 1/2 of the hot rolled strip, and the magnetic permeability is 2.5 times of the latter .

Huajing super corrosion-resistant zinc-aluminum-magnesium alloy coated steel sheet (strip) is formed by high temperature solidification of zinc (Zn), aluminum (Al), magnesium (Mg) and other rare elements on the surface of the steel plate (strip) using special advanced technology. Eutectic structure of Zn, Al, Zn2Mg, etc., so that a dense barrier is formed on the surface of the steel plate (strip) that effectively prevents the penetration of corrosion factors.

Galvanized steel strip is a raw material called (zinc, aluminum) that is cold-rolled or hot-rolled, long and narrow long steel plate is plated with a layer of different degrees. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized strip steel matrix undergoes a complex physical and chemical reaction with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the strip steel matrix. Therefore, its corrosion resistance is strong.

Aluminum-plastic film is the key material for the packaging of lithium battery cells in soft packaging. It is a high-strength, high-barrier multilayer composite material composed of a variety of plastics, aluminum foil and adhesives. After the monolithic battery is assembled, it is sealed with an aluminum-plastic film to form a battery, and the aluminum-plastic film protects the contents. The aluminum-plastic composite film for soft-pack lithium batteries has good barrier properties, electrolyte stability, cold stamping formability, puncture resistance and insulation. It is the most critical safety link in soft-pack lithium batteries and is extremely technically required. A harsh composite material.