The crane from a ready mixed concrete facility unloads ships in the harbour from sand and gravel to put it in a nearby depot (photo 1, 2) or in a hopper for transport to the backend of the factory via a conveyer belt (photo 3, 4).
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See also 'Mixer' in the 2015-1 Photos section for some photos from the factory itself.
Photo 1: Nikon 1 V2, 18.5 mm f/1.8 (50 mm equiv)
Photo 2..6: Nikon FM3a, 35 mm f/2.0 Nikkor, Ilford FP4+