1,Stair Guardrail,A protective railing,Stainless steel handrail. 2,Diameter: From 10.0-159.0mm. 3 ... Guardrail,A protective railing,Stainless steel handrail. .2, Material: Stainless steel compound pipes, [Inner Layer: Carbon Steel Q195-235, Outer Layer: Stainless Steel SUS201/304]3, ... Home Applications, Hospital Equipment, Bathroom Accessories, Lighting Pole, Highway handrail, Stair Fence...etc.