IEC 62744:2014

erru 发表于 2020-4-22 15:31:26

IEC 62744:2014
Representation of states of objects by graphical symbols
Publication date: 2014-11-27
Edition: 1.0

erru 发表于 2020-6-12 10:00:30

求助 IEC 62744:2014
求助 IEC 62744:2014

mohamedabdelhak 发表于 2020-8-24 03:44:41

her is the standard .............................:victory::victory:

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