Baoding Heavy Industry's three utility model patents were approved

The three utility model patents applied by Baoding Heavy Industry were granted patent rights by the State Intellectual Property Office of the People's Republic of China. The company recently obtained the utility model patent certificate issued by the State Intellectual Property Office. The utility model names are: The shaft sealing sealing sleeve molding die, the hammer forging die for the left and right support seats of the train is a hammer forging forming, and the trimming die for the upper and lower support seats of the train is a hammer forging forming.