After failure of a column in structure by an abnormal loading. undesirable performance and damage of connections of the beams connected to the top of this column. can lead to the local failure of floor and in turn result in progressive collapse in the structure. Accordingly. https://www.chiggate.com/turbo-air-m3f72-3-n-78-wide-m3-series-reach-in-freezer-featuring-three-solid-doors-energy-star-online-now/