... name of productpurityparticle sizeloose densitychemical compositionuseultra-fine copper powderCu:99.7%-1000mesh1.2g/cm3Cu:99.7%,O:0.2%,S:0.004%,Fe ... additive,high efficient catalyst name of productpurityparticle sizechemical compositionuseElectrolytic Copper PowderCu:99.8-250meshCu:99.8 , Ni:0.001, Fe:0.0011, Pb:0.05 ...