Lay reinforcing materials on the surface of the mold, then place auxiliary materials such as vacuum bags, and extract the air in the system to form a negative pressure between the vacuum bag and the mold cavity. Use the pressure generated by the vacuum process to pass the resin through the pre-paved The pipeline is pressed into the reinforcing material, so that the resin infiltrates the reinforcing material and finally fills the entire mold. After the product is cured, the auxiliary material is removed to obtain the desired product from the mold.