Metallic building products; transportable buildings of metal; metallic building materials, including metal profiles; metallic fittings for sliding doors and windows; metallic sliding windows, including facade windows; metallic building equipment, namely window and door fittings, as well as for sliding doors and windows, including fastening elements, blocking devices, caps, closing and locking devices; couplings for opening and closing windows and doors included in this class; handles for doors and windows made of metal; non-electric devices for opening and closing windows and doors