rubber molds are generally hot dry pressing molds. During processing, the rubber strip is put into the mold cavity of the rubber mold, after the mold is closed, the mold is put into a hot press, heated, pressurized, and kept warm. Finally, the mold is taken out, and the product is taken out by opening the mold. The plastic mold is usually an injection mold. The melted plastic raw materials are injected into the mold cavity, and after the raw materials are cooled and solidified in the mold cavity, the mold is opened and the finished product is ejected.