Changli Haidong aquatic product and food stuff co., ltd. which the layout is scientific, reasonable and compact, owns many advanced processing quick-freezing equipments and medium-sized standard laboratories and establish many high-standard whole-sealing aseptic workshops, quick-frozen workshops (IQF), natural defrost workshops, packing workshops and two tunnel-based cryogenic machines which has the quick-freezing ability of 80 tons every day, and also has a monitoring equipment of 24 hours.