JT/T 35.4-1993 Technical grade standard for workers in the transportation industry Transportation industry port machinery machinery inspection worker (English Version)
This standard stipulates the levels, knowledge, skills and work examples of port machinery machinery inspectors. This standard applies to the training, assessment and use of port machinery mechanical inspectors. ?
JT/T 35.4-1993 history
1970JT/T 35.4-1993 Technical grade standard for workers in the transportation industry Transportation industry port machinery machinery inspection worker