How many shelves are there in the supermarket?
The choice of several layers is usually based on the height of the goods to be determined.
If it is shampoo, 1.35M high of the island shelf can put a layer around 5; if it is a cup of the shorter ignition, 7, 8 is no problem.
Another point to note is that each layer of things cannot exceed the corresponding load, for example, Cereals, Oils and must choose the shelves, the bearing is relatively high, if the risk of damaging the normal shelves of goods and shelves!
