Read the book, The Mummies Of Urumchi, Dr Elizabeth Barber makes a direct connection to the mummies in the Tarim Basin to the Celtic/La Tene people around Hallstadt, Austria. In fact, chapter #7 in her book is titled, Hami (NW corner of Turfan Basin) and Hallstatt
And, Dr Victor Mair/Dr J.P. Malloy make similar connections in their book, The Tarim Mummies.