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We are using this instrument at our high school in laboratory with various objects measuring.

That’s mass production! Quality will not be up to standard! I don’t buy fruits from China because they out too much chemical into everything!
Some Chinese products were quite good in the old days; but communism destroyed all the good things!

Have a nice day.

@gamer00,
I personally stopped ordering anything from China. Thanks for their pandemic we all suffer a lot!

Cheers~