[size=4]Due to the rapid development of microelectronics technology, digital electronic systems composed of IC chips are developing rapidly in the direction of large scale, small size and high speed,
[i=s]This post was last edited by se7ens on 2022-5-11 10:31[/i]The discarded charging heads at home are basically those used by the leaders before.
Now that mobile phones have been upgraded, this old-