Regarding the restriction of the use of six hazardous substances in the ROHS is mainly for which materials

RoHS is a mandatory standard developed by the European Union legislation, its full name is "on the restriction of the use of certain hazardous components in electrical and electronic equipment directive" (Restriction of Hazardous Substances). It mainly regulates the materials and processes of electrical and electronic products.

Lead (Pb), Mercury (Hg), Hexavalent Chromium (Cr6+), Polybrominated Biphenyls (PBB), Polybrominated Diphenyl Ethers (PBDE) with a maximum allowable content of 0.1% (1000 ppm), and Cadmium (cd) with 0.01% (100 ppm) are compliant with the ROHS Directive (in line with it).

What you said against those materials should mean the member materials! Mainly:

Plastic raw materials (plastic products), hardware products (raw materials), paint and ink, PCB boards, batteries and so on

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