Watch Click Spring Hardness Comparison: Which Is Hardest
作者: Funny Items
发布时间: 2026-08-21 15:31:41
查看数: 58
Hardness Ranking
Click spring materials vary in hardness.
Hardness Ranking
- Steel: 40-50 HRC hardest
- Titanium: 30-40 HRC
- Brass: 20-30 HRC