The junction box is a light to heavy gauge metal cabinet, which is used to store and protect excess fiber optic cable or to provide a cable access point. It is also used as a splice box, patch panel, or central point for system testing and troubleshooting. Junction box is also called jointing box, termination box, and cable enclosures. Typically this is intended to be mounted on walls, poles, or inside manholes.
HVAC stands for heating, ventilating, and air conditioning. Today, HVAC equipment are largely in demand owing to specific need of climate control in medium to large industrial and office buildings such as skyscrapers including aquariums etc.
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