... , fill, and cap pass 2)With two welding heads Automatic Small Pipe Welding Station (1"-8")Suitable for industries of ... PEC, Rotary Engineering, Petrol Steel, CNPC, SINOPEC, CNOOC, CNCEC, etc.Automatic small pipe welding station consists of welding manipulator, elbow welding ... Features:1. Automatic root pass, fill, and cap pass2. With two welding heads3. Cold TIG / RMD-MIG, PULSE-MIG / SAW are optional4 ...