... transmission rake, drive devices, constant-current stabilizer, steel bracket, cant board.Different of GNZS and GTNZ, GTNZ who are automatic lift ... , who was set up at the platform on the roof.4) Cant board components, have PVC boards and glass fiber reinforced plastics ... done and improve the precipitation outcome, also stabilize the flow layer.6) Brackets, which are made up of profile steels, ...