Dị ka PCB osisi mkwado ihe, ọ na-adịkarị kewara n'ime ndị na-esonụ ụdị: 1. Phenolic PCB akwụkwọ mkpụrụ n'ihi na ụdị PCB osisi na-emi esịnede akwụkwọ pulp, osisi pulp, wdg, ọ mgbe ụfọdụ na-aghọ kaadiboodu, V0 osisi, ire ọkụ- retardant osisi na 94HB, wdg Ya isi mate ...
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