- 7 贸易、运输和设备操作和相关的职业 / Trades, transport and equipment operators and related occupations
- 73 设备维护和设备操作行业 / Maintenance and equipment operation trades
- 738 印刷机操作员和其他的贸易和相关职业 / Printing press operators and other trades and related occupations, n.e.c.
- 7381 印刷机操作员 / Printing press operators(B)
- 7384 其他行业及相关行业,n.e.c. / Other trades and related occupations, n.e.c.(B)