Buyers should beware of construction cranes that have not been inspected by an expert source, say original-equipment manufacturers after discovering fakes and taking legal action against manufacturing pirates. At least three separate cases of Chinese-made counterfeits have surfaced in the past six months. Photo: Terex-Demag Fake Demag was found in China. “We have two issues: One is that a company is infringing our rights, and the other is that we think it really is affecting safety,” says Klaus Meissner, director of product integrity for Terex-Demag in Zweibrucken, Germany. Though he says Terex has initiated “some legal proceedings” against a Chinese
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.