1, college degree or above, majoring in engineering technology or engineering economics, having obtained intermediate positions in engineering technology or engineering economics in accordance with relevant state regulations, and having served for over 3 years;

2, in accordance with the relevant provisions of the state, to obtain senior positions in engineering technology or engineering economy;

3. 1970 (including 1970), graduated from technical secondary school majoring in engineering technology or engineering economy, and obtained the intermediate position of engineering technology or engineering economy in accordance with the relevant provisions of the state, and served for three years.