The “Nuclear-grade valve packing and gasket” project developed in cooperation with the Shanghai Nuclear Industry Institute and the Qinshan Nuclear Power Plant passed inspection and acceptance and filled the void of the domestic-made nuclear power seals. The “Double Peaks” brand nuclear-series sealing products were widely used in Qinshan Nuclear Power Station, and were widely adopted by the Daya Bay Nuclear Power Station, Tianwan Nuclear Power Station, and Nanjing Chenguang.