Johannesburg, Cape Town, Durban, Germiston, Pretoria, Port Elizabeth, Bloemfontein, East London, Vanderbijlpark, Pietermaritzburg, Thohoyandou, Polokwane(Pietersburg), Nelspruit, Bushbuckridge, Louis Trichardt, Rustenburg, Mthatha(Umtata), Witbank, Welkom, Klerksdorp, etc.
Among all the cities, Johanesburg is the most famous for its gold crushing plants.
Nickel mine output is poised to ease in 2009-10 as higher production at some mines (such as Murrin and Cosmos) partly offsets mine closures implemented in late 2008 and early 2009. A number of mines were made unprofitable by the then plummeting nickel price. Australia's nickel ore production is expected to decline t to about 179,000 tonnes in 2009-10, compared with 192,200 tonnes five years earlier. Most of the nickel ore mined in Australia is processed locally and the industry represents about 0.1% of overall economic activity.
Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are magnetic at or near room temperature. Its Curie temperature is 355 °C. That is, nickel is non-magnetic above this temperature. Nickel belongs to the transition metals and is hard and ductile.
And we should also take the geographical conditions into the nickel exploration .And whether the open or indoor exploration all adopt the large-scale automatic equipment .And the mining machinery equipment are mainly including : the monitor ,dust-free equipment ,crusher ,wind flow equipment ,ball mill ,exploration and classifying equipment .And during the nickel exploration equipment ,Shanghai Zenith Company mainly produce the nickel crusher and grinding mill .