Juparana Colombo Granite Slabs Used:Slab,Stair,Countertop,Bathtub,Shower Tray,Windown sill Size:300*300,12"x24",18"x18" Juparana Colombo Granite Slabs We are factory and quarry owner , can offer you stairs,tiles,slabs,floor,kerb,paving stone and so on. 1. SizeTilea) 305×305 mm (12''×12''); b) 300×600 mm (12''×24'')c) 400×400 mm (18''×18''); d) 600×600 mm (24''×24'')Slab600up×1200up×20-30mm; 700up ...