WORKERS at over 60 per cent of the industrial furnaces and kilns in Nanning, capital of the Kwangsi Chuang Autonomous Region, have adopted measures to reduce soot and prevent it from contaminating...
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WORKERS at over 60 per cent of the industrial furnaces and kilns in Nanning, capital of the Kwangsi Chuang Autonomous Region, have adopted measures to reduce soot and prevent it from contaminating...