A staff member assembles natural gas pipeline for a vehicle at a work shop of the new energy factory of Zhengzhou Yutong Bus Co., Ltd. in Zhengzhou, central China's Henan Province, March 8, 2023. To catch orders, staff of the new energy factory of Yutong are busy on the assembly line. Since the beginning of this year, Yutong. who exported its bus to more than 30 countries and regions, has won many overseas orders. (Xinhua/Li An)

A staff member assembles the door of a bus at a work shop of the new energy factory of Zhengzhou Yutong Bus Co., Ltd. in Zhengzhou, central China's Henan Province, March 8, 2023. To catch orders, staff of the new energy factory of Yutong are busy on the assembly line. Since the beginning of this year, Yutong. who exported its bus to more than 30 countries and regions, has won many overseas orders. (Xinhua/Li An)

A new energy bus is tested at the test site of Zhengzhou Yutong Bus Co., Ltd. in Zhengzhou, central China's Henan Province, March 8, 2023. To catch orders, staff of the new energy factory of Yutong are busy on the assembly line. Since the beginning of this year, Yutong. who exported its bus to more than 30 countries and regions, has won many overseas orders. (Xinhua/Li Jianan)

A staff member works at a work shop of the new energy factory of Zhengzhou Yutong Bus Co., Ltd. in Zhengzhou, central China's Henan Province, March 8, 2023. To catch orders, staff of the new energy factory of Yutong are busy on the assembly line. Since the beginning of this year, Yutong. who exported its bus to more than 30 countries and regions, has won many overseas orders. (Xinhua/Li An)