Optical cable steel wire is the "invisible guard" that ensures the stable transmission of communication optical cables. It is mainly used as the reinforcing core of optical cables to provide mechanical support and protection for fragile optical fibers. In fields such as 5G networks, data centers. In order to ensure that the cable can withstand enough axial tension when laying and applying, the cable must contain elements that can bear the load, metal, non-metal, in the use of high-strength steel wire as a strengthening part, so that the cable has excellent side pressure resistance, impact. Galvanized steel strand is made of high quality carbon steel wire and treated by electroplating or hot dip galvanizing, galvanized steel wire/strand has the characteristics of corrosion resistance, abrasion resistance, high strength and smooth surface. Widely used in cables, ACSR, fiber optic. Bynet EAA (Electrolytic Aluminum Alloy) / Plastic Coated Steel Wire is a high-performance metallic component designed for outdoor fiber optic cable reinforcement and aerial support applications. The most common variety is carbon steel with a zinc coating. Strands are specified by diameter and. The galvanized steel used for fiber optic cables has two main functions: one is to improve the strength of fiber optic cables (in the production and use of fiber optic cables, steel can provide additional strength, so that the fiber optic cables will not break during traction or construction).