Watch Click Spring Hardness Rating: How Hardness Is Measured
Author: Funny Items
Release time: 2026-08-21 07:23:35
View number: 8
Hardness Rating
Click spring hardness rating determines durability.
Hardness Ratings
- Steel: 40-50 HRC
- Brass: 20-30 HRC
- Titanium: 30-40 HRC