2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217356New Galilei quantum groups dual to the Hopf algebras proposed in [1] are obtained by the nonrelativistic contraction procedures. The corresponding Lie-algebraic and quadratic quantum space-times are identified with the translation sectors of considered algebras.14 pages, accepted for publication in Mod. Phys. Lett. A, v2: numbers of pages for few references are added, v3: the page numbers for all references in preprint version are providedHigh Energy Physics - Theorytext