The rocket core container has 36m length, 6.4m width and 6.6m height. Its extra-large overall dimensions and special interior environment imposed a new challenge to Nantong CIMC in terms of design, finite element analysis, manufacturing, quality control, testing and logistics. Nantong CIMC committed its advantageous resources, and worked meticulously on all the steps including design, procurement, production, quality control and transportation. Eventually, the container passed all tests in one time. In R&D of the rocket carriers, Nantong CIMC exhibited strong design and checking calculation capability and excellent manufacturing and quality control capability, and thus was highly praised by the leaders and review experts of CASC and won the reputation "CIMC manufacturing with superior quality!"