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 ...