What she purchased is 300 sets of the chicken cage for 48000 layers, those 300 sets will be placed in 4 chicken sheds, the size of the chicken shed is 42M*14M*3.6M, and each shed places 12000 layers, the cage is of A-type, 4-tier, 5-door, diameter is 1950mm*450mm*410, one set could place 160 layers.