وصف
Since 2004, Vinnic developed superior Primary Button Cell by using firsr-rank material. While the safety standard of heavy metal for mercury is 5 جزء في المليون, lead is 40 ppm and cadmiun is 20 جزء في المليون, the relevant contents in Vinnic’s Primary Button Cell are much lower than the standard. This is a further milestone in the development of high performance, reliable and enviroment friendly batteries.
