Ernestly Group products include surface and concealed door closers, low-energy door operators, closer-holder-release devices, pivots, stops/holders and exit devices as well as a manufacturer and supplier of all kinds of screws ,computer,handtools, Generator and fasteners.We can make to Customer 's requirement.Hope we can of service to you.If you have any enquries,pls do not hesistate to call me Thanks,Ernest Twang