美利体育登录入口官网:DIN ISO 2351-2:2006 螺丝和螺母用装配工具.机器操作旋具头.第2部分:十字凹头螺钉用旋具头
Assembly tools for screws and nuts - Machine-operated screwdriver bits - Part 2: Screwdriver bits for cross-recessed head screws (ISO 2351-2:2002);English version of DIN ISO 2351-2:2006