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萨尔矿区的恩斯多夫(Ensdorf)选煤厂采用塑料管有廿多年的历史。新水、尾煤浓密机的溢流;含粒度为0.3毫米的固体颗粒的
The Ensdorf coal preparation plant in the Sal mine has more than 20 years of plastic tubing. New water, tail coal thickener overflow; with a particle size of 0.3 mm solid particles