机械能热能互变演示器 J22205 物理仪器 物理实验器材 教学仪器
$3.69
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机械能热能互变演示器 J22205 物理仪器 物理实验器材 教学仪器
| 尺寸(Size) | Length 17cm |
| 材质(Material) | Iron,Copper |
| 颜色(Color) | Multicolor |
| 制造国家/地区(Country/Region of Manufacture) | China |