1)Grades: N30-N50,30M-50M,30H-48H,30SH-45SH,28UH-38UH,30EH-35EH,30AH,33A2)coating:Ni,Ni-Cu-Ni,Zn,Sn,Au,Ag,Epoxy,Passivated and so on.3)packaging: as per customer special request4)our advantages:---Strict Quality Controls and Tests:salty spray test,pct test, dimension test,coating thickness test, and magnetic values test ect. ..