Austenitic Manganese Steel (AMS) OEM Substitute Spares ASTM A 128/ A 128 M Grades – A, B1, B2, C, D, E1, E2, High performance solutions - for steel, cement, coal, power plants; mineral mining and ore processing industry Reversible Impact Crusher Spares & Replacement Parts • Hammer heads, liners, wear plates • Ring granulators