Access to reference gene sequences used by MetaPhlAn

Hi, we know that the different clade names in the abundance level table obtained by Metaphlan contain unique SGB IDs, is it possible for me to fetch the corresponding reference sequences (.fna files) in the SGB database by using these IDs? Or is there any other way to find the standard sequence referenced by Metaphlan? Because I want to do further analysis using my own sequenced sequences and reference sequences.