Size of the tank head, steel Tank head http://www.hebftc8.com/ of Tel 0317-8210122, Mobile 13722724665 Tank head manufacturing introduced as; manufacturing tank or cylinder automatic assembly welding device for the head and cylinder, the cylinder and the cylinder welded construction, this device can be ring seam counterparts assembly, tack welding, formal welding. The device comprises the following parts: clamping the workpiece and the ring seam the assembly welding apparatus of the counterpart assembly body; bearer workpiece.