Group 1 - The company, Guotong Co., Ltd. (002205), stated on September 24 that its products are applicable in railway, high-speed rail, and subway construction [1] - Specific products mentioned include prefabricated lining segments for subways, ballastless track slabs, prefabricated culverts, and prefabricated assembly platforms and station buildings [1]

Group 1 - The company has products applicable to railway, high-speed rail, and subway construction, including prefabricated lining segments, ballastless track slabs, prefabricated culverts, and prefabricated assembly platforms and station buildings [1]