3 ms·
Most doorknobs are brass, which is copper + zinc.
by Consultant32452 7y ago
Most doorknobs are brass, which is copper + zinc.
- laxd 7y agoDoes it work? I had a look outside after writing the comment. The ones I saw where either plastic or wood. (small sample) Edit: I guess the handles we have in our private homes doesn't matter as much as those for public buildings. I'm quite sure the typical public door handle here in Norway are those black plastic plates/pads.