Stair Case Design 1.High bearing capacity 2.Beautiful appearance 3.Cooperate with Porsche 4.Customized for your size Stair Case Design:Handrail material is stainless steel. Below please find some of the essential information for your reference.1.Modular Stairs:Metal Stair,you can choose tempered glass, wood, stainless steel step, etc2.Applicable Scope:Construction Company,Office Building,Personal ...