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A worker uses a shielded cart to retrieve samples from a steel smelter at Ma Steel (Maanshan Iron & Steel Co.) in Maanshan, Anhui Province, China..10 Apr 2006
A worker uses a shielded cart to retrieve samples from a steel smelter at Ma Steel (Maanshan Iron & Steel Co.) in Maanshan, Anhui Province, China..10 Apr 2006