1. Better ventilation and lighting effects 2. High degree of automation 3. Cheaper price 4. Floor saving and cost efficient; Specification: 900*600*270, 900*600*230, 750*550*320, 750*550*280, 750*550*250, 750*550*280, 755*555*280 Application: farm, slaughterhouse, transportation contract unit to carry chicken, rabbits, pigeons and other birds. Structure: A. Grid-like rectangular structure, cross pore on the bottom of the cage, good load capacity. Effectively protecting live chickens and rabbits from being scraped; rectangular structure is good for loading, unloading, and improving work efficiency. B. Self-locking type, without screw fastening, easy disassembly. C.Cage cover with push-pull door, unique rail design, easy to be free closed. Instruction for use: more than 50 kg carrying capacity, about 12 chicken per cage, 10 layer stacked in transit, no deformation.