Collars of metal for fastening pipes; Door casings of metal; Fences of metal; Latticework of metal; Metal clips for general use; Metal gates and fences; Metal greenhouse frames; Metal knockers; Metal latches; Metal manhole covers; Metal palisades; Metal roof vents for heating, cooling, ventilation in residential and commercial buildings; Metal vent covers for roof deck protrusions, drains and pitch pans; Pipes of metal, for central heating installations; Pipework of metal; Window sashes of metal