Granite Stairs(g603) 1.Own quarry&factory 2. CE and ... Japan, Korea, Middle east, Europe, and America.1. Granite Stairs(g603) (1) dimensions:330 X 1000 X 30mm (12. ... 90 degreeThickness tolerance: +/-1 mm2. Product Information Stone NameGranite Stairs(g603) Place Of OriginChina Stone ColorsGreySurface Finishing Polished,Honed, ... , reinforce with straps outside160 china stone natural,granite stairs(g603)