Qingdao qi Yao, wa Xilan ling chong Lin shan marine diesel engine co., ltd is located in Qingdao Haixi bay ship building and repairing base. Qingdao Haixi Bay Shipbuilding and Repairing Base is an important part of the national long-term development plan for the construction of the Bohai Bay Shipbuilding Base. The specifications of the gate constructed by Baotong Company are 41.85 meters wide and 31.7 meters high.