INTRODUCTION: A type 120 cage is used for layer birds above 60 days. it can be used for small quantity below 1,000ps or big quantity above 20,000pcs. Auto feeding system, Auto manure removing system, Auto egg collection, Auto watering system, Auto ventilation system Lighting system FEATURES: Longer using life: hot dip galvanizing technology can protect anti-corrosive and lasting for at least 15 years. Easy operation: simple design makes the operation easy. High efficiency: automatic system can save labor cost and increase working efficiency. Low breakrate: auto egg collection can reduce human labor and egg breakrte. Clean environment: manure removing system can make sure the environment in the shed is clean and reduce harm to the birdï¼?