标准摘要
[中文适用范围]： ISO 11900 的这一部分规定了用于重载的 E 型缩小球锁冲头固定器及其支撑塞的尺寸和公差（以毫米为单位），主要用途是根据 ISO 10071 保持球锁冲头-2、在钢板上冲孔时。 它还给出了材料指南和硬度要求，并根据 ISO 11900 的这一部分指定了球锁冲头固定器的名称。 [外文原描述]： ISO 11900-3:2004 specifies the dimensions and tolerances, in millimetres, of reduced ball-lock punch retainers, type E, for heavy duty, and of their backing plug, the main use being retention of ball-lock punches in accordance with ISO 10071-2, when punching holes in steel sheets. It gives material guidelines and hardness requirements, and specifies the designation of ball-lock punch retainers in accordance with this part of ISO 11900.
英文名称Tools for pressing — Ball-lock punch retainers — Part 3: Type E, reduced for heavy duty