A worker is operate and control regulator valve of pumping unit machine which is using for pressure testing the equipment in factory. Industrial working action photo. Selective focus.
ID: 2105362853
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- 大图:7814 × 5212 像素·66.16 cm × 44.13 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
- 小图:500 × 334 像素·17.64 cm × 11.78 cm·72dpi·JPG