Customized Double U Channel Stringer Modern Straight Staircase

Product Description: U Channel Stringer Steel Staircase Description: Item Type Size(mm) U Channel Stringer Staircase Staircase Stringer Material Carbon Steel/Stainless Steel Size 300*5+300*5/300*6+300*6mm/Customized Finish hot dip glavanized+baking color Staircase Tread Material Ruber wood/Glass/Stainless Steel Size 30/40/50mm/12+1.52+12/5mm/Cusomized Finish Painting Tread Support Material Carbon Steel/Stainless Steel Size Tube:40*40/50*50mm Board: 6mm Finish hot dip