GB/T 43550.1-2023
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 43550.1-2023
Mechanical pencils and lead for general use - Classification, dimensions, quality and test methods - Part 1: Mechanical pencils 一般用途活动铅笔和铅芯 分类、尺寸、质量和试验方法 第1部分:活动铅笔
Issued Date:2023.12.28
Implemented Date:2023.12.28
Issued by:
The Standardization Administration of the People's Republic of China