Magnalium Infogalactic The Planetary Knowledge Core.jul 17, 2012 making black powder with a ball mill. just so you know whats going on. this is me in my backyard. am using a homemade ball mill ive had for years, and skylighters antimony-hardened lead balls. check out my fancy-dancy mill jar! its a one-gallon plastic mayonnaise jar stuck inside a large coffee can for reinforcement.send message
Praha is a leader in the mining industry, mainly with sand and gravel equipment, milling equipment, mineral processing equipment, building materials equipment, etc..