Ukuphatha okuthembekile, ukwakhiwa kwamandla e-R&D, ukuthuthukiswa kwekhwalithi okuqhubekayo, ukuthuthukiswa kwenkonzo yangemuva kokuthengisa, ukwandisa inzuzo kumakhasimende, u-Hengfa uzibophezele ekuthuthukiseni izingxenye ezongayo nezithembekile ukuhlangabezana nesidingo somhlaba somshini wezikhwama we-PP/HDPE
Isikhathi sokuthumela: Jun-14-2018