Angle irons of metal; Bolts of metal; Cable junction sleeves of metal; Cask hoops of metal; Copper pipes; Fittings of metal for flexible pipes; Junctions of metal for flexible pipes; Junctions of metal for pipes including those from alloy steel and titanium; Junctions of metal for rigid pipes; Metal clamps; Metal hinges; Metal hooks; Metal hose clamps; Metal hose fittings; Metal junctions for pipes; Metal pipe couplings and joints; Rotating junctions of metal for pipes; Structure joint connec...