L&H is specializing in the research and development of ship and offshore engineering design, design products cover crude oil ship, geophysical exploration ship, offshore engineering vessel, offshore drilling platforms, offshore workover platform, jacket platform, etc.. L&H is a national high-tech enterprises, access to the API Q1 quality management system certification, is the domestic first-class professional civilian ships and ocean engineering comprehensive technical service enterprises. The R & D center of L&H provides customers with the concept development, contract design, basic design, detailed design and the production and design of the complete technical service chain and efficient service model. L&H actively carry out independent research and development innovation, extensive foreign technical cooperation and exchanges, in the introduction of foreign advanced concepts at the same time, actively develop forward-looking new products. Over the years, L&H has independent R & D and design dozens of types of ship and marine engineering projects, and successfully delivered including wind power installation platform, CP-300 series drilling platform, CP-400 series of drilling platforms, such as more than 10 kinds of ships and marine engineering projects.