yantai grand machinery engineering co.,ltd is a specialized providers for the cold-chain system integration service and food processing equipment.We engaged in research and develop the new production, project consulting, sales and services. Our company rely on the Chinese Academy of Sciences, cooperated with Shandong University in cold room control system, structure design and refrigeration system optimization. We are willing to become one of your partners with our high performance products, excellent quality and perfect after-sale service.