(GB / T 24001-2004 / ISO14001: 2004), the quality management system certification (GB / T 19001) is a member of the China Association of Diving and Salvage Industry, and the Environmental Management System Certificate (GB / T 24001-2004 / ISO14001: 2004) -2008 / ISO 9001: 2008 standard), occupational health and safety management system certification (GB / T 28001-2011 / OHSAS 18001: 2007 standard).