... :Electric conduction and contaction. 3.ISO9001:2008,ROHs metal stamping AA battery contact springs for PCB 1. Available Material: Phosphor bronze ... products Note:>>Our scope of product: All kinds of sheet metal part, battery contact, terminal, metal shrapnel, shielding sharpnel, ... ,we would like to provide formal material certificate showing chemical compositions and property,also if you need ,we ...