| 摘要 |
PURPOSE: A boundary stone is provided to improve durability, bond strength, tensile strength, and bending strength by being made of a plastic material. CONSTITUTION: A boundary stone comprises a boundary stone main body(10), a connection groove(20), a connection bar(30), and a drainpipe(40). The boundary stone main body is made of a synthetic resin or a plastic material. The connection groove is longitudinally formed on the upper surface of the boundary stone main body. The connection bar is correspondingly mounted inside the connection groove to the shape of the connection groove. The connection bar is integrated with a pair of boundary stone main bodies. The drainpipe is formed inside the boundary stone main body into a hollow shape. |
