Shanghai TR Steel Building Products Co., Ltd was established in 2001, one of the largest and most successful manufacturers of quality FRP Sheet and Roof Turbo Ventilators in China. TR Co., Ltd specializes in Skylite FRP Sheet and Skyaxis Turbine Ventilator for civil and industrial use. TR Co., Ltd is the first domestic company who simultaneously has FRP Sheet and Roof Turbo Ventilator which are produced on large scale. Shanghai TR Co., Ltd successfully passed Swiss SGS ISO9001: 2000 International Quality System Certificate.