Make the end of trade, have a higher naphum is the result of a degeneration of an entirely more quickly.Heat accumulation between the wall because there is no cold air flow areas.
Trade has made the region a higher temperature. As a result of the deterioration of the trade faster heat buildup between its walls. Since there is no space for cooling air circulation.
The Expos have you place higher. As a result, the deterioration of the product faster heat accumulated between products with the wall. Since no space to cool air flow .