The use of lead sheet, flashing, solder and pipe in building work.

The creation of a joint between the faces of sheet metal components or between wires and terminals using molten solder with a flux. 

The creation of a joint between either the faces of sheet metal components or between wires and terminals using molten solder with a flux. 

Small soldering jobs requiring a flame or the annealing of small metal objects with a blowtorch attached to a small cartridge of butane.