Our precision-engineered metal end caps are specifically designed for use in AA (5#) ва ААА (7#) маҷмӯи батарея, serving as the top and bottom terminals. Made from high-quality nickel-plated steel or custom alloys, these battery caps provide excellent conductivity, муқовимат ба зангзании, and mechanical strength for high-performance battery applications. Хусусиятҳои асосӣ: Муносиб барои АА (5#) ва ААА (7#) standard sizes Material: …