Fil machine en acier à haute teneur en bore et à très faible teneur en carbone pour les fils gainés de cuivre

This document specifies requirements for ultra-low carbon high boron steel wire rod for copper cladded wire, mainly used in telecommunication cable (hereinafter referred to as wire rods). This document applies to wire rods with circular cross-sections and diameters of 5 mm to 20 mm.