21032滑轮组 单滑轮 双滑轮串 并滑轮组物理 力学实验 演示滑轮组
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21032滑轮组 单滑轮 双滑轮串 并滑轮组物理 力学实验 演示滑轮组
| 颜色(Color) | Black |
| 尺寸(Size) | As Described |
| 材质(Material) | PP |
| 制造国家/地区(Country/Region of Manufacture) | China |
| 类别(Type) | Pulleys Block Set Physics Experiment Kits |