Automatic Elbow Welding Machine 1)Zero-balance weight design 2 ... customer's profit!Suitable for industries of: OIL AND GAS, REFINERY FACILITIES, OFFSHORE &SHIPBUILDING, POWER PLANT, ETCReference: ... Engineering, Petrol Steel, JSL, ETC.Automatic Elbow Welding MachineFeatures: 1Zero-balance weight design2Suitable for pipes from ... O. D. 2" to 48"3TIG/MIG/SAW are optional4Automatic root pass, fill, and ...