- What is a spring?
- What is the life expectancy of a spring?
- An extension spring must produce a certain force when extended to a particular extent; is that possible?
- What do the codes DRKV, TRKV, BLDV, TORV, SCHV, GERD, VDRD, VBST, STMV, DRAV mean?

- What is 'spring rate'?
- Is there an extension spring with a very high spring rate?
- What is the impact of a thicker wire on the spring rate of extension springs / compression springs / torsion springs?
- What is the impact of the number of coils on the spring rate of extension springs / compression springs / torsion springs?
- What is the impact of the (mean) diameter on the spring rate of extension springs / compression springs / torsion springs?

- Does Roveron have a standard package of springs?
- Why are 10 springs proportionally more expensive than 100 springs?
- A product looks like a standard product, but has different measurements and must be made from different material. How do we solve this?
- I want our internal bar codes on my articles; is this possible?
- We urgently need springs; is that possible?
- I have a sample of a (leaf) spring; can that be copied?
- What norm regulates the manufacturing of springs?