Karborund, silicijum-karbid, odlikuje se velikom tvrdoćom (samo je dijamant tvrđi). Upotrebljava se u zubnoj protetici za struganje zuba i glačanje zubnih proteza.
I am not offering you SEO, neither PPC.
It's something completely different.
Just send me keywords of your interest and I'll give you traffic guarantees on each of them.
Let me demonstrate how it works and you will be surprised by the results.