标准摘要
[中文适用范围]： ISO 9177 的本部分规定了用于技术制图的手持自动铅笔的分类、尺寸、性能要求和测试。 [外文原描述]： ISO 9177-1:2016 specifies classification, dimensions, performance requirements and testing for hand-held mechanical pencils used for technical drawings.
英文名称Mechanical pencils for technical drawings — Part 1: Classification, dimensions, performance requirements and testing