$tbl2 = '<table border="0" cellpadding="5" cellspacing="0" align="justify" style="font-size:10px;">

 <tr bgcolor="#D8D8D8">
 <th width="60px" style="text-align:center; border:1px solid #000;"><strong>CANT</strong></th>
 <th width="40px" style="text-align:center; border:1px solid #000;"><strong>COD</strong></th>
 <th width="180px" style="text-align:center; border:1px solid #000;"><strong>DETALLE</strong></th>
 <th width="95px" style="text-align:center; border:1px solid #000;"><strong>DESPACHO</strong></th>
 <th width="95px" style="text-align:center; border:1px solid #000;"><strong>PROC.ORIGEN</strong></th>
 <th width="60px" style="text-align:center; border:1px solid #000;"><strong>P.UNI</strong></th>
 <th width="65px" style="text-align:center; border:1px solid #000;"><strong>BON.%</strong></th>
 <th width="50px" style="text-align:center; border:1px solid #000;"><strong>P.NETO</strong></th>
 <th style="text-align:center; border:1px solid #000;" width="70px" ><strong>IMPORTE</strong></th>

 </tr>';

foreach ($items as $datos) {

  $tb12 .= "<tr><td width='60px'>{$datos['CANT']}</td>
  <td width='40px'>{$datos['COD']}</td>
  <td width='180px'></td>
  <td width='96px'></td>
  <td width='94px'></td>
  <td></td>
  <td></td>
  <td></td>
  <td width='70px'></td></tr>";
  }

$tb12 .= "</table>";