We accept customized services:
Provide us with parameters:
Dimension Requirements (Wire diameter, OD(outer diameter), length, number of turns)
Material ( steel, stainless steel, carbon steel, Mn, etc.)
Surface treatment requirements (Zinc, tin, chromium, nickel plating, black, spray paint, etc)
The direction of rotation (left, right)
Strength requirements (elastic properties)
Draw hook forms (round hook, half circle hook, U hook, middle ear, side hook)
You can also send us the sample or drawing and we will study it.
Advantages of our Cylindrical Spiral Extension Spring
- Anti-rust oil on the surface.
- Excellent steel raw materials, from the source to control the quality of products.
- Stable and durable, scalability is good.
- Fine workmanship, reliable quality.