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 9 Very Best Essential Oils For Treating Colds And Flu. You know the feeling. It may start with a scratchy throat or with a few more aches and pains than normal. Or it could begin with a runny nose and a feeling of exhaustion. Yes, itâs a cold coming on â or maybe worse â the flu.