As a supplement to mortars' names: all mortars 60mm M1926, 50mm M1932 and 81mm M1933 were actually designed by Valero and produced by Esperanza y Cia = Ecia.
According to
https://forum.axishistory.com/viewto...82486&start=15 (and further pages), from 1942 or 1943, Division Azul used own 120mm Franco mortar, with range 6500 m (now we have unit 281 12cm Morteros with German mortars - I don't know if they were used)