High pure molybdenum trioxide  Appearance:Yellowish powder , no impurity naked eye can see  Grade&©|65306;The MoO3 content in Grade-A is not less than 99.5% ;  the MoO3 content in Grade-B is not less than 99%  Main applications&©|65306;Make molybdenum powder , petroleum catalyst , pigment , alloy raw materials , etc.  The impurity content accords with the following standard  
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