Block 15


Block 15 : One or more pulleys, or sheaves, mounted into a common framework in order to rotate on a common axis. The crown block is an assembly of sheaves mounted on beams at the top of the derrick or mast. The traveling block is an assembly of sheaves mounted in a framework that allows the block to move up and down
No records Found
afaatim.com copyright © April 2016 Dr.K.R.Kamaal. All rights reserved