$10
Ergonomics of human-system interaction—Part 400:Principles and requirements for physical input devices
IDT ISO 9241-400:2007
全国人类工效学标准化技术委员会(SAC/TC 7)
This standard is the original Chinese electronic standard.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
After you successfully purchase, we will send the electronic version of this standard to your email address