Offshore and huge vessels blocks, available when moving industrial heavy objects MOVING ROLLER.
 In particular, it can carry heavy if you receive the height of the limit on the narrow space and working conditions with no transport device, such as a crane forklift and hoist. Using the motor rather than the hydraulic method to wireless control forward / reverse rotation and movement / revolution , you can prevent advance accidents of workers. 2 or more to install MOVING ROLLER transport of bulky or heavy duty products are available.