... machine is developed by our factory as a new generation equipment of produce barrels, It is worked by four wheels, rolling ... edge: standard 4.5mm-6mm uniformity of width: upper and lower ≤0.5mmII,Equipment Structure1,Overall welding, aging treatment2,Table-board ... This machine is automatic double-end sealing equipment. 2,The machine adopt the technique of install work piece by man power, roller ...