The equipment often used in the production of cement pipes is the cement pipe mold. In addition to the materials used, the various performance indicators of the cement pipe mold are also inextricably related to the quality of the cement pipe. At least in a few ways.

　　1. The deformation of the finished cement pipe during the molding process is because the cement pipe may be agglomerated with cement material inside the cement pipe mold, causing the wall of the cement pipe to deform in different thicknesses.

　　2. When the finished cement pipe has delamination and fracture, it is also because the cement pipe mold is unqualified when the cement pipe mold is used to manufacture the cement pipe, and the selected cement pipe material is unqualified. These are the key points of the problem.