... TypeAA group/AAA group/Single. MaterialPiano wire, stainless steel, High Carbon Steel, Nickel Plated, Phosphor copper Bronze, Copper Bronze, Beryllium ... conventional lathe machines, milling machines, drilling machines, 5T-150T stamping machines, EDM machines, wire cutting machines, bending machines etc. ... .Payment TermsT/T, L/C,Western Union,. battery plate,battery plates,battery plate making machine