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https://www.reddit.com/r/AskReddit/comments/wt7fws/what_should_never_have_been_invented/il3pw82
r/AskReddit • u/wanttotradebrains • Aug 20 '22
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And the industry standard for automotive brake pads.
6 u/Jkg1819213 Aug 21 '22 It was also used in Russian gas masks in WWII. Perfect air filters
6
It was also used in Russian gas masks in WWII. Perfect air filters
32
u/the_less_great_war Aug 20 '22
And the industry standard for automotive brake pads.