... .Reputation and Quality first 4.Mg content: 99.95%, 99.98%, 99.99% Typical Specification:Magnesium ingot content >= 99.9%, Si content <= 0.03% Mg99.90 ... :magnesiun powder: 60 mesh, 80 mesh, 100 mesh... magnesium ingot: 99.99%, 99.98%,99.95%,99.90%, weight: 100g,200g,300g,5kg,7.5kg,12kg ...