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).
Nandini Weitzman, a licensed clinical nutritionist in the state of New York and an alternative health practitioner who has been using Young Living essential oils and oil-based products for 13 years, recommends that you keep five essential oils on hand to help ward off or reduce the severity of a cold, cough, virus, fever or flu.