Homemade Rock Tumbler Friendly Metal Detecting Forums .It all began in 1976 with the comil the original conical mill. revolutionary concept at the time, that has since evolved into the global processing standard. for more than years, we have been improving and refining the quadro conical milling technology reaffirming our leadership with every generation. We offer the industrys mostsend message
Praha is a leader in the mining industry, mainly with sand and gravel equipment, milling equipment, mineral processing equipment, building materials equipment, etc..