... * 2.30m* 1.5 m .feed 90 chickens per set1.International Q235 bridge steel ,white PVC manger, ball valve type automatic ... type steel galvanized shelf, closed-end pressure regulator.2.Advantage: international Q235 material, Good elasticity, not deformation, not flagging for life ... on the cage 4.3MM U type steel galvanized shelf, international 3MM thick plate rack, U shape design. Can withstand 350 ...