... (Welding Column and Boom) 1) Automatic root pass, fill, and cap pass Automatic Welding Manipulator (welding column and boom)Suitable ... , Petrol Steel, CNPC, SINOPEC, CNOOC, CNCEC, etc.Features:1. Automatic root pass, fill, and cap pass2. TIG/ MIG/ SAW welding ... technologies are optional3. Can set up an automatic welding station when working together with turning table, positioner and ...