In Feb 2018，Doorfold Partition Wall Company owned three new utility model patents from the state intellectual property bureau:the first one is: “a passdoor structure for framed movable glass panel” （patent NO：ZL 2017 2 0929784.5）; the second one is:“a drop seal structure for passdoor”（patent NO：ZL 2017 2 0929759.7）; the third one is:“a corner seal structure for top and bottom seal of sound proof movable wall system”（patent NO：ZL 2017 2 0929760.X）!!!the second and the third patent designs are greatly improved the sound insulation performance for Doorfold sound proof movable walls systems.Doorfold aims to provide our clients with high quality and high sound insulation movable wall systems as his long term missions.
