... and contaction. 3.ISO9001:2008,ROHs metal stamping AA battery contact springs for PCB 1. Available Material: Phosphor bronze , Iron ... Electric conduction and contaction.4. Size: It's according to customer's drawing.5. Technic is stamping6. Finish: Tin plated ... scope of product: All kinds of sheet metal part, battery contact, terminal, metal shrapnel, shielding sharpnel, furniture metal part, stamping ...