Code of practice for the safe use of cranes, Inspection, maintenance and thorough examination. Overhead travelling cranes, including portal and semi-portal cranes, hoists, and their supporting structures— 24 стр.
53.020.20 Cranes. Including mobile cranes, tower cranes, jib cranes, bridge cranes, etc. / Краны. Включая самоходные краны, башенные краны, консольные краны, мостовые краны и т.д.
