سیم برق - خرید کابل - سیم و کابل - کابل برق - قیمت کابل - 1590According to a strand of wire can be divided into the number 2 wire strand, 3 strand wire, 7 wire strand and 19 strand wire. Smooth surface morphology can be divided according to strand, strand nicks, pull the strand die (compact), galvanized steel wire, epoxy coated strand and so on. Can also follow the diameter, or intensity level, or standard classification. High-carbon steel wire rod, cold drawn through the surface treatment into the wire, and then press the strand structure of the synthesis of a certain number of shares of twisted steel wire, through the elimination of stress from the stabilization process. To extend the durability, the wire can be metal or non-metallic coating or coatings, such as galvanized, coated with epoxy resins. To increase the bond strength with concrete, the surface can have nicks and so on. Mode pulling the prestressed steel strand after strand through a die in the compression process, the structure is more compact, more suitable anchor grip surface. Produced no strand (unbonded steel strand) the ordinary pre-stressed strand, anti-corrosion grease or paraffin coated high-density polyethylene bag (HDPE) to become.