Ipetroleum yaseChina kunye nekhemikhali co., LTD., qilu isebe leplasitiki factory yasekwa ngoJuni 1992, yimveliso yepololefin resin esekwe kwishishini lepetrochemical enkulu Umzi-mveliso weplastiki oneseti ezintandathu zezixhobo zokuvelisa, uneetoni ezingama-200/ unyaka polyethylene experiment cent...
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