Mn13 steel sheet 1.standard ASTM,AISI,DIN,JIS,GB 2.thickness ... ) ≤6000(mm)length features and use scope High Mn 13 steel sheet,average of initial hardness are 200HBW , shock resistance and ... impact,such as scaleboard , pinion rack,the wall of crashing, sleeve and form relieved tooth normal specification,6mm 8mm 10mm 12mm ...