Installation of locks; installation of locks for windows; repair of locks; repair of locks for windows; maintenance of locks; maintenance of locks for windows; window installation; window repair; maintenance of windows; installation of window fittings and parts of windows; maintenance of window fittings and parts of windows; repair of window fittings and parts of windows

Safety evaluation services; safety testing of window locks; safety testing of windows; safety testing of window fittings; safety testing of parts of windows; advisory services relating to the safety of windows; advisory services relating to the quality of locks; advisory services relating to the certification of safety standards; advisory services relating to the certification of safety standards for windows; advisory services relating to the certification of safety standards for locks; testing services for the safety of locks; testing services for the safety of windows; testing services relating to the certification of safety standards for locks; window inspection (testing) services; window locks inspection (testing) services; inspection (testing) services for the quality control of window locks