LPG Gas Cylinder Production Line, Cable Machinery, Cylinder Welding Machine manufacturer / supplier in China, offering Complete LPG Gas Cylinder Body Welder/ Welding Making Machine for LPG Gas Cylinder Production Line, Turnkey Project 3kg 6kg 11kg 12kg 35kg 45kg LPG Propane Gas Cylinder Bottle Equipment Production Line for New Plant, 2" and 3/4" Steel Barrel Drum Container Closure, Plug Bung and so on.