FIFA, May 9 (Xinhua)-- the Federation said that there were 21 working days in May, one day more than last year. It is beneficial to the production and sales of automobile enterprises. As the proposal to postpone the sales of the old models of the sixth National Committee jointly called for by the Federation of passengers and all sectors of the community is still not yet clear, the production and sales of some models of the car companies in May are still relatively cautious. Due to the impact of supply chain instability on sales performance in the same period last year, sales in May may continue to show broad growth compared with the same period last year.