1. Material: carbon steel, E-coating+ poder coated 2. Diameter: 40*3.0mm, welded pipe 3. Flange dimension: ... treatment: Powder coating, E-coating, Hot-dip Galvanized, Sandbalst with paint, etc;4. Material: Carbon Steel, S235, 195, Or 345; Stainless ... the high levle quality, but also good service. Low-profile Coated Bike Rack