Saspan is laquer coated non-corrosive berdan primed ammunition produced in Russia, I believe at the Uly plant.
If it is the HP kind, it is the most effective HP bullet ever produced for the 7.62x39mm. It fragments extremely well, and has been proven to do extensive damage on gel blocks resembling human targets. Again, if it is the HP version, it is the best self-defense ammo you can buy for the 7.62x39mm.
If it is FMJ, it is pretty much the same as laquer coated Wolf, although a little more accurate. Not dirty, but it is reliable.