<a href="http://tvxaydung.com/tai-lieu/ban-ve-chi-tiet-ranh-doc-hinh-thang/attachment/3-9/" rel="attachment wp-att-4762"><img class="aligncenter wp-image-4762" src="http://tvxaydung.com/wp-content/uploads/2020/06/3-4.png" /></a> <a href="http://tvxaydung.com/tai-lieu/ban-ve-chi-tiet-ranh-doc-hinh-thang/attachment/4-9/" rel="attachment wp-att-4763"><img class="aligncenter wp-image-4763" src="http://tvxaydung.com/wp-content/uploads/2020/06/4-4.png" a/></a> Tải file Auto Cad bản vẽ chi tiết rãnh dọc hình thang tại đây: <a class="btn btn-default" href="https://drive.google.com/file/d/1ChFSC87VCNhIPsPzdR6MQRmVDzbjx8K9/view?usp=sharing">download</a>