diff --git a/src/cl_sii/dte/data_models.py b/src/cl_sii/dte/data_models.py
index 799711d0..d4cbd1de 100644
--- a/src/cl_sii/dte/data_models.py
+++ b/src/cl_sii/dte/data_models.py
@@ -216,23 +216,25 @@ def random(
         cls,
         emisor_rut: Optional[Rut] = None,
         tipo_dte: TipoDte | Sequence[TipoDte] = tuple(TipoDte),
-        folio: Optional[int] = None,
+        folio: int | tuple[int, int] = (
+            constants.DTE_FOLIO_FIELD_MIN_VALUE,
+            constants.DTE_FOLIO_FIELD_MAX_VALUE,
+        ),
     ) -> Self:
         """
         Generate random DTE natural key within valid ranges.
 
         :param emisor_rut: RUT of the "emisor" of the DTE. If `None`, a random RUT is generated.
         :param tipo_dte: The kind of DTE. If a sequence is provided, a random one is chosen.
-        :param folio: The sequential number of the DTE. If `None`, a random folio is generated.
+        :param folio: The sequential number of the DTE. If a 2-tuple of integers is provided,
+            a random one is chosen within the range defined by the tuple.
         """
         if emisor_rut is None:
             emisor_rut = Rut.random()
         if isinstance(tipo_dte, Sequence):
             tipo_dte = random.choice(tipo_dte)
-        if folio is None:
-            folio = random.randint(
-                constants.DTE_FOLIO_FIELD_MIN_VALUE, constants.DTE_FOLIO_FIELD_MAX_VALUE
-            )
+        if isinstance(folio, tuple):
+            folio = random.randint(*folio)
         return cls(emisor_rut, tipo_dte, folio)
 
 
diff --git a/src/tests/test_dte_data_models.py b/src/tests/test_dte_data_models.py
index 32d03b30..30ac791c 100644
--- a/src/tests/test_dte_data_models.py
+++ b/src/tests/test_dte_data_models.py
@@ -138,6 +138,17 @@ def test_random(self) -> None:
         specific_dte_nk = DteNaturalKey.random(tipo_dte=specific_tipo)
         self.assertEqual(specific_dte_nk.tipo_dte, specific_tipo)
 
+        # Test with sequence of tipo_dte values
+        tipo_dte_sequence = [TipoDte.FACTURA_ELECTRONICA, TipoDte.NOTA_CREDITO_ELECTRONICA]
+        seq_dte_nk = DteNaturalKey.random(tipo_dte=tipo_dte_sequence)
+        self.assertIn(seq_dte_nk.tipo_dte, tipo_dte_sequence)
+
+        # Test with custom folio range
+        custom_folio_range = (1000, 2000)
+        range_dte_nk = DteNaturalKey.random(folio=custom_folio_range)
+        self.assertGreaterEqual(range_dte_nk.folio, custom_folio_range[0])
+        self.assertLessEqual(range_dte_nk.folio, custom_folio_range[1])
+
         # Test with partial custom parameters
         partial_custom = DteNaturalKey.random(emisor_rut=custom_rut)
         self.assertEqual(partial_custom.emisor_rut, custom_rut)