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TB/T3246.1 -2019 Guidelines for the design of bolt connections for rolling stock-Part 1: Classification of bolt connections; 2020.1.1 Implementation; TB/T3246.1 -2019 applies to the classification of bolt connections for railway rolling stock, and other rail vehicles can also be used for reference; TB/T3246.1 -2019 specifies the risk levels, tightening conditions, and classification of bolt connections for railway rolling stock, and lists the relationships between them in chart form. |
