Masiku ano, ndi kuwonjezeka kwambiri kwa zofuna za PCB.Opanga PCB ochulukirachulukira akutuluka, makamaka ku China komwe kumadziwika kuti fakitale yapadziko lonse lapansi.Makasitomala padziko lonse lapansi akuyang'ana wopanga PCB wapamwamba kwambiri ku China, Komabe, tingapeze bwanji ...
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