concrete sewage treatment facilities, north china

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Size: 3168px × 4752px
Photo credit: © YongXin Zhang / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: cast--situ, cement, concrete, construction, corridors, environment, equipment, facilities, features, industrial, manufacturing, metal, outdoor, passage, pool, pouring, processing, railing, sedimentation, sewage, structure, tank