hey flatlanders, help me identify this sprocket!

[turndown]

http://www.bikeguide.org/forums/attachment.php?attachmentid=72687&stc=1&d=1170810570

all i know is that its a 23t quamen, i would just like to know what kind of aluminum its made out of, and if it will fit primo powerbite cranks.
thanks everyone.

[kkmk]

http://www.flatlandfuel.com/item.jhtml?UCIDs=849786%7C889283&PRID=1431791

that it dude?

http://www.quamenbikes.com/flatland-stylesgears.html