... ,Treads:800mm-900mm width.2,Tempered glass treads :19mm or 10+10mm thick.3,Keel: straight , A3 steel, Flash silver color.Service ... railing , stair fitting and hardware fittings.HOMELIVE relies on advanced production technology and powerful R & D capabilities,keeps improvement.We sincerely ... . Contact me anytime. beautiful and solid stainless steel and toughened glass L-Type Stair / staircase