Tolix Back-Rest Chair ,Metal Chair. 1:1.0mm thickness steel sheet; 2:Powder Coating 3:Stacked 4:Can be galvaniz Tolix Chair; Metal Chair1:1.0mm thickness steelsheet;2:Back Tube: 16x1.2mm3:Powder Coating4:Galvanized color5:Stacked Tolix Back-Rest Chair, Metal Chair, Metal Dining Chair