A New Line of Fire Rated Timber Doors Launched 2013-10-25 Hinrich has launched a new brand of high quality fire rated wood doors. All doors are tested to comply with the latest building regulatons in Hong Kong. Hinrich has just taken on the distribution and marketing of a new brand of high quality timber doors. All fire doors are tested to comply with the latest building regulations in Hong Kong. A full range of fire doors have been tested to UL10C and BS 476 with FRP 45/60/120 minutes. These doors can be made in very big sizes, and can be pre-finished in clear lacquer, colour painting, and plastic laminates. Large glass aperture can be installed on the door, and a wide range of ironmongery are approved for use with the doors.