(1) the hook shall not have any defect affecting the safety performance;Defects of the hook shall not be soldered;The surface of the hook should be smooth and free from defects such as ****s, folding, sharp angles, burrs, peeling and overburning.
(3) the hook which has been overburdened shall be scrapped. https://www.hbcranehook.com/cran...hook-block-assembly.html