Sub cross_join()
Dim i, j, tot_sor_rows, tot_ref_rows As Integer
Dim res_pos As Integer
Dim sh1 As Worksheet
Set sh1 = ThisWorkbook.Sheets("Sheet1")
tot_sor_rows = sh1.Range("A1", sh1.Range("A1").End(xlDown)).Rows.Count
tot_ref_rows = sh1.Range("B1", sh1.Range("B1").End(xlDown)).Rows.Count
res_pos = 2
For i = 2 To tot_sor_rows
For j = 2 To tot_ref_rows
sh1.Range("C" + CStr(res_pos)).Value = (CStr(sh1.Range("A" + CStr(i)).Value) + "-" + CStr(sh1.Range("B" + CStr(j)).Value))
res_pos = res_pos + 1
Next j
Next i
End Sub