We accept customized services:
- Dimension Requirements (free length 1-500mm, diameter 2.8-6mm ,OD 0-100mm,ID1-100mm)
- Material ( stainless steel, spring steel, piano steel, etc.)
- Surface treatment requirements (Zinc plating, tin plating, chromium plating, nickel plating, gold plating, silver plating, black, spray paint, etc)
- Requirements for turning Direction
- Other requirements
Advantages of our Double hook Extension Spring
- Stainless steel material, good rust resistance.
- Select excellent raw materials, and strong toughness.
- Strict control, and high-temperature resistance.
- High hardness.