... the made-to-order high-precision machine chassis and frames. Standard: AISI, ASTM, BS, DIN, GB, JISGrade: SGCH,SGCC, DX51D,Q195Thickness: 0 ... : About 60g-180g/m2Technique: hot rolled and cold rolled AISI, ASTM, BS, DIN, GB, JIS Galvanized steel coil