<page_title> British Rail Class 312 </page_title> <section_title> Fleet details </section_title> <table> <cell> Central Trains <col_header> Operator </col_header> </cell> <cell> 4 <col_header> No. of Units </col_header> </cell> <cell> 312725-728 <col_header> Unit Numbers </col_header> </cell> </table>
The Central Trains has four units with 312725-728.