... some countrie battery chicken cage system (A type, H type, 3 tiers, 4 tiers, 5 tiers ) Feature- High stocking density, up to ... Black to black, 2 floors, 3 floors, 4 floors Length 1.80m, 2.0m, 2.15m Width 1.90m, 2.0m, 2.30m Height 1.30m, 1.5m, 1.70m Average area ...