All original SPRINGER springs have a sticker with the logo, spring number, spring number according to the original manufacturer.
After each production and anti-corrosion painting, a spring number is applied to each spring.
Depending on the type of spring, the mark (logo and production date (month, year)) is located either on the clamp (plate of the top sheet) of the spring or on the surface of the rear end of the spring.
To provide resistance to aggressive environments on roads, SPRINGER springs are applied with five stages of corrosion protection.