Bunge folding partition wall divide your space flexibly with high sound insulation performance.no need floor track,top hung system.. Its magnetic strips are set on the adjacent panels edges ,they will attracted by each other automaticly when they are close enough,have good seal and acoustic performance,each panel limit weight is 450KG,top and bottom telescopic range are 22.5MM. And65-D32(STC 32),base surface is armor plate, RW=32dB85-D38(STC 38),base surface is MDF board or plywood,RW=38dB100-D50 (STC 50), base surface is Melamine board RW=50dBValues and benefits of sliwal partition walls1, R