... 2. steel, alloy, chromed, Galvanized 3. good quality& price 4. TUV and Dot standard SpecificationsOur steel wheel produced according ... to ISO/TS16949 certificates, USA DOT certificate1.steel, alloy material, chromed, Galvanized2.Size:13x4,13x4.5,13x5 ... ,14x5,14x5.5,14x6,14x7,14.5x6;15x5 ...