Regarding various standards and specifications
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Colleagues, I would like to ask: where do you download the specifications and standards for **? Where can I find out if any new regulations are about to be issued?
http://www.sac.gov.cn/**Standardization Committee
Got a bunch from the master, then updated and replaced it:lol:lol:lol
**The standards committee needs to spend money to acquire it
Printed books are better than electronic versions; what was shared on the second floor is quite good.
Rutu.com, and then there are various forums