Battery Spring Contact
Description：Battery spring contact.
Technical information：
1. Material:
Spring steel / Brass
2. Surface treatment:
Nickel plating
3. Process:
Progressive Stamping --- Plating
Engineering difficulty：
1. Good conductivity;
2. Micro size with precision tolerance;
Remarks：
1. Tooling time: 12 working days
2. Production time: 12 working days
3. Usage: Audio Studio / Wireless charging / electronic device pen
