[{"title":"( 2 个子文件 378KB ) 点焊机图纸.7z点焊机图纸.7z","children":[{"title":"点焊机图纸","children":[{"title":"点焊机","children":[{"title":"点焊机.jpg <span style='color:#111;'> 32.33KB </span>","children":null,"spread":false},{"title":"点焊机.STEP <span style='color:#111;'> 2.51MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]