1. Material: aluminum, stainless steel, SPCC, SPHC, SECC, SPHC, SZACC, SGCC etc.2. Processing: NCT, NC bending, punching, etc.3. Surface treatment: Degreasing, Pickling, Phosphoric, powder coating etc.4. Color: Grey, Black, White or as your request.5. Structure: 9-Curved model steel, welded by the high quality professional 3-ways-connected..