Who makes those springs? It looks like a part number instead of an actual make/model. The Kg/mm is the unit of measure for the spring rate. So if there were a figure before that Kg/mm...you'd at least know what rate they were.
Welcome to the board...there IS alot of useful info here!
I'm pretty sure that Kg/mm is the actual name of the springs. Since posting this thread I have found out more about these springs and they look to be a performance spring very popular in Canada and Europe. You can do a search for these and find there website but good luck reading most of it. The set that was on E-bay sold for only $70 but I didn't know much about them when they sold so I guess I missed out.