... 3, diameter: according to customeraas request 4. L: 1000-3000mm Four Wheel Sealing MachineFour-wheel double-end sealing machine is developed ... new generation equipment of produce barrels, It is worked by four wheels, rolling forming, high production efficiency, easy operation, the ... was produced by 635 (planer milling machine) board.3,The box adopt Q235 A3 steel, and made Vibration aging treatment.III ...