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).
There are many symptoms experienced by a cold sufferer so letâs treat each one separately. Essential oils for a cold: Coughs: Several oils have expectorant properties which can help clear mucus from the lungs. Others assist by relaxing or opening up respiratory passages. Oils helpful for coughs include Eucalyptus, Thyme, Sandalwood, Frankincense, Cypress, Cedarwood, Lavender, Myrrh, Peppermint, and Rosemary.