Controlling the fumes from the bonding together of two pieces of metal, the joint being created by a layer of molten alloy, the flow of which is assisted by a flux.

The bonding together of two pieces of metal, the joint being created by a layer of molten alloy, the flow of which is assisted by a flux.

The combustion of any fuel, eg, acetylene, propane or methane, with oxygen from a cylinder rather than air at normal or increased pressure, gives a hotter flame that is often easier to control.

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