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).
52 Top Uses for dÅTERRAâs On Guardâ¢ Essential Oil Blend. 1. Mix with a tbsp of water, gargle for 1 minute then swallow at the on-set of a sore. throat. 2. Put 5 drops Oregano and 5 drops OnGuard in a capsule and take 3 times daily at. the on set of cold or flu symptoms. 3. Put on the soles of childrenâs feet at night during cold & flu season to support.