... .size 30x20cm; 2.professional manufacturer; 3.wholesale prices multi-color slate flat roof tile 1. split surface finished;2. thickness: 6- ... stone veneer,floor tile,flagstone,stackstone,crazy mesh,stairs,mosaics,roof tile,quoins,culture stone, etc. SHOS Processing Common Standards: ... Angles tolerance less: ±1º;3.Thickness tolerance: ±1mm;4.Flat surface without pyrite point and other color points.5.Tiles ...