On April 26, Baoyin Special Steel Tube Co., Ltd. independently researched, developed and produced a new generation of Alloy 690 U-shaped tube. The first delivery ceremony was ceremoniously held in Yixing. This batch of products are respectively delivered to Dongfang Electric (Guangzhou) Heavy Machinery Co., Ltd. and Shanghai Electric Nuclear Equipment Co., Ltd., which will be the first to be used in nuclear power units with the maximum power in the present world --national major special demonstration project CAP1400, indicating that China's nuclear power technology and key equipment manufacturing capacity rose to the international advanced level.