... and noiseless 3Thickness:1.8x1.5x1.0mm 4Finished:Zinc-plated Concealed slide(SWT663BLH)ProductConcealed slide SWT663BLHItem numberSWT663BLHMaterialGalvanized sheetSize300mm,350mm,400mm,450mm,500mm,550mmFinishedZinc-platedThickness1 ... can pass 50000cycles test, surface can pass 48hours salt spray. Concealed slide(SWT663BLH)