has been specializing in precision stamped metal parts (battery cases and electronic parts) and the related tooling technology for over 25 years. For battery cases alone, KAGA supplies over 1 billion pieces annually to the major battery manufactures all over the world. Even since its establishment, KAGA has been committed to providing the best quality in the industry. KAGA's excellent tooling craftsmanship and precision stamping technology has continuously increased the number of itself America 's largest supplier of button-type battery cases.