RoHS Directive
RoHS is a mandatory standard formulated by EU legislation that is mainly used to regulate the material and processing standards of products,
making it more conducive to human health and environmental protection.
The RoHS directive restricts the use of six types of hazardous substances:
lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE).