Our precision-engineered metal end caps are specifically designed for use in AA (5#) болон AAA (7#) зайны угсралт, serving as the top and bottom terminals. Made from high-quality nickel-plated steel or custom alloys, these battery caps provide excellent conductivity, зэврэлтэнд тэсвэртэй, and mechanical strength for high-performance battery applications. Гол онцлогууд: АА-д тохиромжтой (5#) болон AAA (7#) standard sizes Material: …