... dia:2.5mm-3mm 5.ISO9001 3 layers Cage of laying birds for poultry farmChicken cage Materia:Low carbon steel wireCage ... size, can add automatic drinking water system, also available for one layer or layers adjustment.If there are special specifications ... door160Can production according to customer special requirement 7. Each cage accessories: drinking water, feeding trough, cage frame, PVC pipe, clip, ...