... welcome.Cage can be plastic, iron, brass,All the metal parts can be plates with zinc, nickel, cupper and ... .Rs/2rs (sealing rubber)for dirty environmentZz/z(sealing metal)for hot environment injection molding roller part can be POM ... ), glass fiber ect. ApplicationFor furniture, office equipment , museum cabinet, wine cabinet, article cabinet etc. Packaging details poly bag->paper box->carton Delivery ...