... .A type and H type 4..Convenient Metal Chicken Coops For Sale Descriptions:Material: Low carbon steel wire .Surface treatment: Electro galvanize ... the size, can add automatic drinking water system, also available for one layer or layers adjustment. Details:Layers : 4-5 doors ... ,each row work independently,cannot effect each other feedng tower1.store food ,labor-saving 2.good looking, easy to operate.3 ...