... 150-190mm Per StepSuitable for: Hotel stair, Bedroom staircase, Indoor StepsExport Markets: GlobalAdditional Info. Trademark: GuangShengQiangPacking: Inner ... 190mm Per Step. 4. Function: Hotel stair,bedroom staircase,indoor stairs, balcony and etc. 5. Quality: High ... your requirements. We are professional manufacturer of staircase, including staircase, handrail, railing, baluster, balustrade, glass ...