The material of the U-groove die is very important. It determines the appearance and quality of the U-groove steel die. U-type die parts using high-performance materials, die materials, etc. can also be low vacuum surface reinforcement treatment, so that the durability of the mold to a new level. Die production speed die removable, production speed is greatly improved, the use of sheet steel die production of high-speed cement prefabricated components is economical, canal mold size is large, plastic mold can not be completed, steel mold forming simple and convenient, the advantages of rapid disassembly and use quickly occupy the market, The installation of U-shaped groove mould refers to the method and procedure for the installation of concrete tubes. In addition to the requirement of compactness and stability of the foundation, it also requires careful operation by staff and requires strict operation procedures.