<data priority="50">
    <xpath expr="//table[@name='invoice_line_table']" position="before">
        <style>
      th#default_code,
      td#default_code {
        white-space: nowrap;
      }
    </style>
    </xpath>
    <xpath expr="//table[@name='invoice_line_table']//th[@name='th_description']" position="before">
        <th id="default_code">
            <span>Referenz</span>
        </th>
    </xpath>
    <xpath expr="//table[@name='invoice_line_table']//td[@name='account_invoice_line_name']" position="before">
        <td id="default_code">
            <span t-field="line.product_id.default_code"/>
        </td>
    </xpath>
</data>
