Senior engineer standing in the plant and holding the paper roll of plant design with copy space. Wearing safety helmet and safety vest. Feeling happy and smile on work. Engineering and design concept
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- 大图:6033 × 3999 像素·51.08 cm × 33.86 cm·300dpi·JPG
- 中图:1000 × 663 像素·35.28 cm × 23.39 cm·72dpi·JPG
- 小图:500 × 332 像素·17.64 cm × 11.71 cm·72dpi·JPG