... toughness,is a beautiful and practical high-tech roof system.Without cement mortar,steel tile with screws and self adheive strengrh, ... avoiding the pollution of the roof ,reducing constuction dust.This tile is suitable for steel roof struction,wood struction,cast concrete ... overglaze/Color stone chips/Epoxy primer/Al-Zinc coat/Base steel Type Classic type,Nosen type,Flat sheet type,Wood ...