Jun Hao 3 is a specialized design and manufacture of the shallow pipe-laying vessel, can sit bottom, taking it as a platform to undertake shallow submarine pipeline laying, cable laying, pipeline trenching, backfill, marine engineering services supporting. Jun Hao 3 through 4 sets of 35 tons of anchor machines and 4 sets of 60 tons of anchor machine to complete the construction process control of the positioning of. And through the specialized design and manufacture of the 35 tons of portal crane operation．．．