https://sites.google.com/nsysu.kksh.kh.edu.tw/laser-cutting-engraving/%E6%9C%A8%E8%B3%AA%E9%9F%B3%E7%AE%B1%E8%A8%AD%E8%A8%88%E8%88%87%E8%A3%BD%E4%BD%9C
木質音箱 SOLIDWORKS元件設計圖 QCAD 尺度標註1100622-1100704
https://drive.google.com/drive/folders/1azNYco-j-DeVvmXu4ipXiXwaWVtfBllt?usp=sharing