Threaded metal tube products: 1):ROHS approved ; 2):Material : mild steel, Aluminum; 3):High-density. Threaded metal tube products:1.Material: Aluminum , mild steel or as per clients' requents;2.Surface treatment: Zinc plated, anodize , electroplate;3.Package: 200 pcs/polybag, 2,000 pcs/carton;4.Material certificate, test report and surface treatment report is available;5.Tolerance: 0.01 mm;6. ...