Profile: Aocomm specializes in providing civil engineering materials, bridge materials, water supply and drainage, electric power facilities and construction tools. Waterstop is a new type of sealing material mixed by inorganic absorbent material and rubber. With water expansion feature and functions of concrete embedded waterproof in the process of construction and secondary plugging of construction facilities, it can effectively solve the problem of concrete structure settlement and construction joints leakage and is widely used in underground construction, bridge, tunnel and other projects.