... , CNOOC, CNCEC, etc.Automatic small pipe welding station consists of welding manipulator, elbow welding machine, power source, self centering welding positioner and pipe support ... device. It is able to realize automatic pipe welding completely.Features: 1Automatic root pass, fill, and cap ... than 99% qualified first X-ray test. Heavy--duty Automatic Welding Equipment (PLC control)