聚脲弹性体技术在毛张庄闸闸门防腐加固工程中的应用
취뇨탄성체기술재모장장갑갑문방부가고공정중적응용
Application of Polyurea Elastomer Technique in Anti-Corrosion and Strengthening Engineering of Sluice Gate in Maozhangzhuang Floodgate