Qingdao Zhonghai Marine Machinery Co., Ltd. is located in the beautiful city of Qingdao. We mainly specialize in the design and manufacture of marine machinery hydraulic system assemblies and hydraulic accessories, such as marine hydraulic cylinders, hydraulic winches and high pressure hoses. We also sell hydraulic components with famous domestic and overseas brands. For years, we have adhered to the principle of "quality first, customer foremost", and our everlasting pursuit is making fine products and making our customers free of trouble. It is also the only means for our survival. We are looking forward to your visit and cooperation. Our company has paid close attention to the construction of a quality control system. Our company has passed the evaluation of ISO9001 Quality Management System certification. Our marine hydraulic cylinders, hydraulic winches and high pressure hoses have passed the approval of China Classification Society Quality Assurance Ltd.