Group 1 - The core point of the article is that Zhejiang Zhongtuo Group Co., Ltd. has successfully completed the first batch of warehouse receipts delivery for "Guiwan Steel" hot-rolled coils in collaboration with Guangxi Shenglong Metallurgy Co., Ltd. [1] Group 2 - The delivery was carried out by Ningbo Zhongtuo Supply Chain Management Co., Ltd., a subsidiary of Zhejiang Zhongtuo Group [1] - The successful collaboration indicates a strengthening partnership between the two companies in the steel supply chain [1]