cnc special precision motorcycle parts with disc Brand nameXJMaterial available1.Stainless Steel:SS201, SS303, SS304, SS316, SS410, SS4202.Steel:C45(K1045), C46(K1046),C20,etc.3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58),C27200CuZn37), C28000(CuZn40),etc.4.Bronze:C51000, C52100, C54400, etc.5.Iron:1213,..