铁科轨道：公司签署销售合同，合同金额合计为5.11亿元人民币（含税）

Core Viewpoint - The company has signed multiple procurement contracts for high-speed railway fastening materials, totaling approximately 5.11 billion RMB, indicating a significant engagement in railway infrastructure projects [1] Group 1: Contract Details - The company signed a procurement contract with China Railway Shanghai Bureau Group for the construction project management of the new Nantong to Ningbo high-speed railway, with a contract value of 52.5598 million RMB (including tax) [1] - Additional contracts were signed with Shanghai Guotie Engineering Construction Management Co., Ltd., Hangzhou-Shanghai Railway Passenger Dedicated Line Co., Ltd., and Tongsujiaying Railway Co., Ltd., totaling 458 million RMB (including tax) [1] - The combined total of these contracts amounts to 511 million RMB (including tax) [1]