Astra Group Llc is a manufacturer of fine and ultrafine copper powder, with high purity (99,95%) and low oxygen content (0,2%), particle size smaller than 15 microns with rounded shape, tap density 4,0 g/ccm. Smaller particle size available on request. Our manufacturing plant is situated in Ukraine and uses a patented method of milling. Other powders are available, now we are developing very fine titanium powder with particle size smaller than 6 micron.