Liebherr LB44 Kelly Bar-OD 470mm Interlocking

Raw material for kelly pipe: S355 and 35Crmo, Kelly key is Hardox500, with forged kelly stub. We made Interlocking kelly bar for LB24, LB36, LB44, LRB355 etc. We have robots for automatic welding. We will remove rust from the steel pipes. In addition, we will sandblast the drill pipes again after welding.