Expanded mesh is a kind of permanent disassembly-free formwork with mechanical properties and light weight. It has greater stress intensity and shape freedom than ordinary formwork. It can improve project quality and structural safety and reduce construction costs. It has been used in tunnels, bridges, and sewers. , used in the construction of subways, retaining walls, high-rise buildings, ocean engineering and other projects, especially suitable for post-pouring, settlement joints, construction joints, isolation of different concrete strength levels, reserved and embedded holes and formwork for curved surfaces.

Due to the porosity of the expanded mesh, a special grid is used to cover it, and steel bars with a diameter of less than 12mm can be used to pass through it with a little force. Steel bars with a slightly larger diameter can be cut through the grid, and the plate can be returned to its position after the steel bars pass through. The expansion net can also be installed before binding the steel bars, and then it can be inserted through its mesh and installed. The durable formwork can be bonded to the next pour of concrete without removing the formwork or making joint preparations, thus simplifying the joint preparation work. Multifunctional, easy to cut, and can be bent and formed according to the required mold shape.