D421 Flotation Depressant Powder , Y&X Patent Flotation Reagent
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                                            Y&X Patent Flotation Reagent D421 Mining Depressant Most Welcomed in Mines Product introduction D421 to restrain pyrite, pyrrhotite, arsenopyrite and other sulfur-containing minerals, has obvious effect on the sorting of aimed mineral and sulfur-cont ......                                         
                                            Y&X Beijing Technology Co., Ltd.
                                         
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