... metal such as stainless steel, carbon steel, aluminum, are available. SUS304, Q235.2. All kinds of surface are available.-- polishing, zinc ... 2Material availablesteel, stainless steel, aluminum, 3 SECC, AL5052, AL6063, AL5083, SUS304, etc4Surface treatmentspray paint, silk screening, powder coating, polishing,5 zinc ...