用于檢驗童車前進、后退耐久性、耐用要求、機械強度、用于判定童車的各種綜合性能。
<dd id='k06ij'><tbody id='k06ij'><td id='k06ij'><optgroup id='k06ij'><strong id='k06ij'></strong></optgroup><address id='k06ij'><ul id='k06ij'></ul></address><big id='k06ij'></big></td><table id='k06ij'></table></tbody><pre id='k06ij'></pre></dd><span id='k06ij'><b id='k06ij'></b></span>
<dfn id='k06ij'><optgroup id='k06ij'></optgroup></dfn><tfoot id='k06ij'><bdo id='k06ij'><div id='k06ij'></div><i id='k06ij'><dt id='k06ij'></dt></i></bdo></tfoot>
<ul id='k06ij'></ul>
<fieldset id='k06ij'></fieldset>
