good quality and reasonable price accept smaller order Electro-magnet magnetic pole, end welded pipe in magnetron, earphone diaphragm, torque motor rotor, transducer ferrite core 1J36,1J116,1J117 precision alloy itemChemical analysisCPSMnSiCuCrMoNiCoFeTi1J36≤0.03≤0.020≤0.02≤0.06≤0.20 35.0~ 37.0