Phrase Texts Recovering

Dears,

I am trying to do a simple query extraction related with transaction DGP3 containing material, dangerous goods description and hazard-inducing substances fields. Until this point no problem as this can be extracted from tables DGTMD and DGTM2. But I would like to extract too the descriptions (texts) of fields DGTM2-PDGNUD, DGTM2-PRES1, DGTM2-PRES2, DGTM2-PRES3. Could you please indicate what are the tables in SAP that store these descriptions and what are the key fields for linking (ESTPP, ESTPH??).

** I attached an screeshoot from SAP containing exactly the texts fields from trasncation DGP3 that I want to recover.

Thanks in Advance,

Best Regards,

Willy.