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.
Protect Your Home and Hands. To help ward off seasonal illnesses, use a diffuser with essential oils blends known for their antimicrobial properties, such as eucalyptus and myrrh or tea tree oil and lavender.
To prevent flu infection: Yarnell recommends taking immunomodulating herbs, especially Panax quinquefolius (American ginseng), because there are clinical trials showing it can prevent both colds and flu. This may also help flu vaccines work better, especially in the elderly, he says.