As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout techniques. In many Naval Construction Force (NCF) projects, sheet metal is used to protect the exterior of buildings by using flashing, gutters, and at times, complete sheet-metal roofing systems.
Other essential oils have anti-microbial actions, protect against colds and are highly effective for respiratory support, whose essences can be inhaled to address ear, nose, throat and lung problems. These include: 1  Frankincense (Boswella carteri). 2  Lavender (Lavandula augustifolia). 3  Lemon (Citrus limonom).
The essential oil is distilled from the leaves and twigs of the tree; it has a camphoraceous aroma. In aromatherapy practice, blue gum eucalyptus essential oil is used for coughs, colds, asthma, aches and pains, and as an insect repellent. The main chemical components of this essential oil are oxides.