Kwiminyaka yakutshanje, imfuno yehlabathi ye-hydrocarbon resins iye yanda, iqhutywa kusetyenziso lwazo oluguquguqukayo kumashishini ahlukeneyo, kubandakanya izinto zokuncamathelisa, iingubo kunye nee-inki. Phambili kule marike ikhulayo yiTangshan Saiou Chemicals Co., Ltd., Umdlali ophambili ...
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