22:37
Barge unloading 4600 tons of ore - Relaxing video - work on barge
27:18
Barge unloads concrete gravel - smooth flow -Video completed
30:16
Most Incredible Recycling Process of Old Used Copper Bullet in Factory | Production of Copper Pots
17:26
【6】Ship unloading gravel｜船舶卸载砂石
36:13