... CNPC brand, Factory price silicon powderSi powdersilicon metal powderSi metal powdermetal silicon powderpure silicon powderamorphous silicon powderultrafine silicon ... Dark gray metallic luster powder. APPLICATIONBe used in metal ceramics, hard alloys and diamond tools,Electronics, ... different particle or different purity of silicon metal powder PACKING AND STORAGEIron barrel or plastic bag package. ...