This image of road traffic sign is from the mandatory National Standard of the People's Republic of China GB 5768, Road traffic signs and markings. Per 权司[1999]第50号 issued by the National Copyright Administration, mandatory standards are technical standards with legal natures, so the copyright protection is inapplicable pursuant to Article 5 of the Copyright Law of the People's Republic of China.
I, the copyright holder of this work, hereby publish it under the following license:
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
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