Bisa ga PCB hukumar ƙarfafa kayan, shi ne kullum raba zuwa wadannan iri: 1. Phenolic PCB takarda substrate Saboda irin wannan PCB hukumar da aka hada da takarda ɓangaren litattafan almara, ɓangaren litattafan almara, da dai sauransu, shi wani lokacin ya zama kwali, V0 jirgin, harshen wuta-. retardant allon da 94HB, da dai sauransu Babban abokin tarayya ...
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