File:Copper mining and sulfuric acid plant1a34317v.jpg
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current | 20:20, 20 March 2015 | ![]() | 939 × 647 (340 KB) | Borvan53 | improve image: suppr tilting, vignetting and dark points |
01:16, 20 January 2014 | ![]() | 939 × 647 (368 KB) | Slowking4 | User created page with UploadWizard |
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