And if they don't have numbers,
and you have no idea what they are,
and it bothers you a lot,
Sell them to me :naughty:
Or find someone with a spring checker, and have them tested.
I use a wheel scale in my shop press to check spring rates.
I put a small squeeze on them, record what the scale says,
then compress them an additional inch, and see what that reading is.
Substract the first number, from the second number, and wala.......
You have the spring rate in pound/inch.
If you want the number in kg/mm like the Japanese do,
divide the pound/inch number by 56, that gives you the kg/mm number.
But I still think that this is bothering you way too much,
and you should still sell them to me :icon_bigg