layer battery cage 1.cage for layer chicken 2.lying cage 3.uselife for 15 years 4.design the layout for you Chicken cagepoultry farming equipmentpoultry equipment layer battery cagepoultry battery cagepoultry house Configuration parametersMaterial: Q235 national standard bridge steel cages, white PVC trough, ball-type automatic water equipment, white PVC pipe, 3MM U-type galvanized steel shelves, ...