2849Heading
2849 — Carbides, whether or not chemically defined
Carbua, đã hoặc chưa xác định về mặt hóa học
Codes under heading 2849
Distinguish from heading:2811Other…2812Halid…2813Sulph…2843Collo…2853Phosp…2901Acycl…6805Natur…6804Mills…
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