... the seriers of bike rack, inlcuding Wave, Spirial, Low-profile, Wall-mountant, Bollard-Bike racks, etc;2. The material size is ... Galvanized, Sandbalst with paint, etc;4. Material: Carbon Steel, S235, 195, Or 345; Stainless Steel, SUS304, Or SUS316; Aluminum is available;5. OEM ... only provide the high levle quality, but also good service. 2012 Stainless steel or Carbon Steel Bike Racks