国统股份：公司的主营产品PCCP，可以用于热电厂（包括核电站）厂外补给水管道及场内冷却循环水管道

Group 1 - The company's main product, PCCP, can be used in the construction of auxiliary hydraulic facilities for power plants, including thermal and nuclear power plants [2] - PCCP is applicable for external water supply pipelines and internal cooling circulation water pipelines at power plants [2] Group 2 - The interaction took place on an investor communication platform, indicating active engagement with investors [2] - The inquiry reflects investor interest in the company's product applications within the energy sector [2]