Yancheng Qinnan Hong Sheng-altitude anti-corrosion maintenance Limited plugging Engineering Department is a high-altitude anti-corrosion maintenance Yancheng Qinnan Hong Sheng (China) Co., Ltd. (Group) one of its waterproof plugging construction professional to undertake maintenance business. Founded in the mid-1980s. The ongoing construction of waterproof construction technology research, development, rich waterproof plugging of construction experience. The company has strong technical force, focusing on waterproof training of technical personnel, who are familiar with a variety of waterproof plugging material construction technology professional waterproof construction team.