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الحصول على السعرThe health risks of welding fume, and how to reduce them in the workshop In 2017, the International Agency for Research on Cancer (IARC) released new scientific evidence showing that exposure to mild steel welding fume can cause lung cancer, and possibly kidney cancer, in humans.
الحصول على السعرClose ties to France following independence in 1960, the development of cocoa production for export, and foreign investment all made Cote d'Ivoire one of the most prosperous of the West African states but did not protect it from political turmoil.
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الحصول على السعرA massive dust storm in Burkina Faso (bottom center) created an opaque, sandy shroud over much of the landlocked West African country. The storm seems to be extending north into Mali and east into southwestern Niger.
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