根据ISO 11901-1、ISO 11901-3和ISO 11901-4，本文件规定了用于冲压工具和气弹簧的安装底板、两件式安装夹具、法兰安装件和前端支架的尺寸，单位为毫米。 它还提供了有关材料的信息，并根据本文件规定了安装附件的名称。

This document specifies the dimensions in millimetres, of mounting base plates, of two-part mounting clamps, of flange mounts and front end supports intended for use in press tool together with gas springs in accordance with ISO 11901？1, ISO 11901？3 and ISO 11901？4. It also gives information concerning materials and specifies the designation of the mounting accessories in accordance with this document.