excavators are carrying pile pipe to sea. pipe piles are either a welded or seamless steel pipe

excavators carrying pile pipe sea piles welded seamless steel may driven open-ended closed-ended easy understand type piling industry metal machine construction machinery machines bucket lifting pipe pipeline steel pile occupational safety operation work working process build materials diggers loading people field site buckets distant distance excavator earth mover excavators sky dust color horizontal outdoors piles port motion sea transportation transport close-up seaside