Flooring Products Tau introduces porcelain line July 3, 2001 Tau has released its new Coliseo line of porcelain tiles. The new line comes in 12-by-24-inch tiles. The Coliseo’s lazio design comes in marfil and beige with three different listellos. Share This Story You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.