... prices 3 ,Timely design 4,Cut as required Natural Green Stone Stairs MaterialsNatural Stone G603 Grey Granite (more materials availalbe: granite, marble, ... , etc.)Stair typeStraight stairs ,spiral stairs ,arc stairs Popular stone for steps granite:G603,G636,G664,G687,G654,G562,G682 ... red,tiger skin yellow,shandong white,guilin red,CD green,emerald pearl,blue pearl,indian red,etc.marble:landscape ...