Customized U Channel Stringer Steel Staircase

Product Description:High Quality U Channel Stringer Steel StaircaseDescription:Item TypeSize(mm)U Channel Stringer StaircaseStaircase StringerMaterialCarbon Steel/Stainless SteelSize300*5+300*5/300*6+300*6mm/CustomizedFinishhot dip glavanized+baking colorStaircase TreadMaterialRuber wood/Glass/Stainless SteelSize30/40/50mm/12+1.52+12/5mm/CusomizedFinishPaintingTread SupportMaterialCarbon Steel/Stainless SteelSizeTube:40*40/50*50mm Board: 6mmFinishhot dip glavanized+baking