Mifananidzo yekugadzira PCB haifanirwe kutaurirana zvakawanda kupfuura marongerwo emapuranga nemifananidzo yemhangura kana dhizaini yacho iine minwe yegoridhe yakasarudzwa, nzvimbo dzakadzika dzakadzorwa, maburi akakuyiwa, kuputira mativi emucheto, kudhirowa kumashure kana kuti mavhiya akazadzwa. Ruzivo rwekuita rusina kushaikwa runogona kunonotsa kutaurwa,...






