Yes According to official website of Suzhou Housing and Urban-Rural Development Bureau, since August 7, 2020, in order to ensure the safety of residents and site personnel, tower cranes and tower crane hooks without hook visualization system are prohibited in construction sites in Suzhou, and tower crane safety monitoring system and tower crane hook visualization system must be installed. Tower crane, also known as tower crane, originated in western Europe. A rotating crane with a movable arm installed at the upper part of the tower.