have been dubbed the "Chinese backbone of state owned enterprise" title, awarded the "national advanced construction enterprise", "national excellent construction enterprise", "national quality management advanced enterprise", "national construction safety production advanced unit" and "national ideological and political work (text introduction) was founded in 1954, is the first access port and waterway engineering construction general contracting qualification of large state-owned construction enterprises, have been dubbed the" Chinese backbone of state owned enterprise "title, awarded the" national advanced construction enterprise "," national excellent construction enterprise "," national quality management advanced enterprise "," national construction safety production advanced unit "and "National ideological and political work