... 2.Two models available(6"-32" type, 6"-48" type) Welding EquipmentSuitable for industries of: OIL AND GAS, REFINERY FACILITIES, OFFSHORE ... CNCEC, etc.Automatic small pipe welding station consists of welding manipulator, elbow welding machine, power source, self centering welding positioner and pipe support device ... 99% qualified first X-ray test. Heavy--duty Automatic Welding Equipment (PLC control)