As a core waterproof embedded building material for concrete construction joints and post-cast strips, the waterstop steel plate is mostly made of Q235 hot-rolled steel plate. Its common style is bent into a V shape or U shape in the middle to form a waterstop wing. When concrete is poured, it is embedded at the joint position. The bent structure extends the seepage path of groundwater, breaks the seepage channel, and effectively prevents leakage at construction joints. The product has a complete range of specifications, with customizable thickness and width, and the surface can be treated with rust prevention. It has a firm structure, strong pressure resistance, and durable and stable anti-seepage performance. It is widely used in various underground waterproofing projects such as basements, underground garages, water storage tanks, sewage treatment tanks, culverts, subways, and utility tunnels. It is a commonly used rigid waterstop material in civil engineering waterproofing processes. During construction, it must be installed centered, and the lap joints must be welded tightly to achieve the best waterstop effect.