Thanks!
In case someone still finds this thread: standards my ass. Guess what, in Poland we have different ISO 3758:2012 symbols. Compare [0] with [1]. As it turns out, some of the symbols have "A" and "B" variant, and we use the "B" one for some reason.
Also I couldn't figure out WTF is "drip drying", and how "drip line drying" and "drip flat drying" differ from "line drying" and "flat drying". The Internet is very unhelpful here - every single article I saw assumed you already know what it means. Fortunately, [1] contained a note that the methods of drying are defined in ISO 6330:2000, and as luck would have it, I saw a copy of ISO 6330:2000 fall out of the back of a truck. Taking a quick peek, I now know that "drip line/flat drying" means...
...just "line/flat drying", except you set your washing machine to not do the final spinning cycle.
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- [0] - EN ISO 3758:2012 :: http://labritex.com/wp-content/uploads/ISO-3758-Care-symbols...
- [1] - PN-EN ISO 3758:2012 :: https://www.eurowolle.pl/wp-content/uploads/2014/10/piktogra...