Complex sentence: Besides training, Eblé also issued his pontonniers specialized tools and equipment, the most notable of which were the mobile wagon-mounted forges, that could quickly make any needed but unavailable metal parts or items.
Split into simpler sentences: Besides training, Eblé also issued his pontonniers specialized tools and equipment. Most notable of which were the mobile wagon-mounted forges, that could quickly make any needed but unavailable metal parts or items.