Highly flexible steel strand with colourless plastic sheathing, 1. Very high tensile strength, application for long wire antennas that are suspended under high tensile stress. In an industry where performance and longevity are. The global market for steel wire strand in optical cable is surging, driven by massive investments in 5G rollout, FTTx deployment, and infrastructure modernization. This growth is fundamentally reshaping the supply chain and technical requirements for these critical strength members. 5mm² cross-section, outer diameter 3mm. For. Carl Stahl TECHNOCABLES is a cable manufacturer and supplier of wire ropes made of stainless steel, galvanised steel, tungsten, Nitinol.