The dust was passed through a 5oo-pm sieve to remove large particles of debris and air dried in a well ventilated and dark roomt was ground in a ballmill and sieved through a 125-prn sievehe material was homogenized by shaking, in portions, in a 5-l darkglass bottle.
Henan Mining Heavy Machinery Co., Ltd.
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The dust was passed through a 5oo-pm sieve to remove large particles of debris and air dried in a well ventilated and dark roomt was ground in a ballmill and sieved through a 125-prn sievehe material was homogenized by shaking, in portions, in a 5-l darkglass bottle.Get Price
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