GEI-219 ERW tube mill machine is a specific tube machine used to produce straight seam round steel tube which diameter of Φ114-Φ219mm（4''-8''）with thickness 0.3-8.0mm and corresponding square and rectangle tubes. GEI represent our brand and 219 means the maximum tube size can be produced by this type of tube mill. This tube mill mainly used for production of straight seam welded tube used in metallurgy, construction, transportation, machinery, vehicles and other industries. So if you need to start a project for pipe making mill at this range of tube size, GEIT group will provide you the best proposal and solutions with our advance technology and wealth experience. Like this large tube mill, we will design different forming method , such as "W" forming method or the "FF" forming method according to your exact requirement to reach the best purpose.