What do the signs on mobile phones, batteries and laptop charger mean?

There is a big fork on the trash can, telling you not to throw it into the trash can. Numbers, such as 5 and 20, are marked with a circle of arrows. This means environmental protection and ccc certification. In the past, European countries had different requirements for imported and sold products. Goods manufactured according to one national standard probably could not go to other countries with CE-certified logo cities. As part of efforts to eliminate trade barriers, CE certification came into being. Therefore, CE certification represents European consistency. In fact, CE certification is also the abbreviation of "Europe * * *" in many languages in Europe. Initially, the English phrase "European Community" was abbreviated as EC. Later, because Europe * * is communite Europe in French, communite Europe in Italian, communidade Europe in Portuguese and communidade Europe in Spanish, EC was changed to CE. Of course, CE certification can also be regarded as conforming to European and pct patents.