Ezweni elishintsha njalo lezinto ezisetshenziswa yizimboni, ama-petroleum resins abe yisithako esiyinhloko ekusetshenzisweni okuhlukahlukene kusukela kokunamathelayo kuye kuma-coatings. Njengoba izimboni zifuna izixazululo ezintsha zokuthuthukisa ukusebenza komkhiqizo, izinkampani ezifana ne-Tangshan Saiou Chemical Co., Ltd. zihamba phambili ...
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