詳細規格及用途描述
School Chalks, standard educational or blackboard chalks for schools, lecture rooms, and etc., available in calcium sulfate and calcium carbonate materials.
School Chalks, standard educational or blackboard chalks for schools, lecture rooms, and etc., available in calcium sulfate and calcium carbonate materials.
| 公司名稱: | 嘜德有限公司 |
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