Because at present only Zaozhuang can be used as a place to settle down. It can be considered as a loose policy ... which is not allowed in other places. Only Lu D, namely Zaozhuang, can legally settle down. However, after the settlement, it was still the original retirement period, but it was changed to non-operation. As long as the whole car has been painted, 99.99% of Lu D brand used cars are turned into non-operation. Cars that have been turned into non-operating vehicles can only be scrapped one year in advance (compulsory scrapping for eight years) before they can be transferred.