Embonini yensimbi, amapayipi ensimbi angenamthungo, njengezinto ezibalulekile zamapayipi, asetshenziswa kabanzi emkhakheni we-petroleum, imboni yamakhemikhali, ukwakhiwa kwemikhumbi, ukwakhiwa kwemikhumbi, njll. Phakathi kwabo, amapayipi ensimbi angama-intshi angu-20 angenamthungo adonse ukunaka okukhulu ngenxa yobubanzi bawo obulinganiselwe. nenhlobo ebanzi yohlelo lokusebenza...
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