The grade of plastic mold is divided into five grades according to the production volume, product precision, customer requirements and quotation: precision mold, mass production mold, medium production mold, small production mold, manual mold or test mold, 100000 beer or more, precision mold. 1. Detailed mold structure diagram is required. 2. The minimum hardness of mold embryo material is 28 HRC. 3. The steel of internal module with glue position must be pre hardened to 48~50HRC. Other parts such as line position, press lock, bead, etc. shall also be hardware 4. Ejector plate shall be provided with middle bracket. 5. Straight lock or inclined lock shall be installed 6. It is recommended to use electroless nickel or 420 stainless steel as the formwork for all transport channels to prevent rust and clean up garbage 7. Temperature control shall be provided for upper mold, lower mold and row position 8. The row position and press lock shall be equipped with wear-resistant block. II. The die shall be produced in large quantities when the beer is more than 500000 but not more than 1000000 beer. 1. Detailed die structure drawing is required. 2. The minimum hardness of mold embryo material shall be 28 HRC. 3. The steel of internal mold with glue position shall be as hard as 48~52 HRC. Other parts such as row position, press lock, press bar, etc. shall also be hardware 4. It is recommended to use straight lock or inclined lock 5. It is recommended to check whether the following items are needed when quoting the following items. A. Ejector plate should be in the bracket B. The travel position and press lock shall be equipped with wear-resistant block C. Electroplated water delivery hole D. Electroplated mold cavity III. Medium production mold with more than 100000 beer and less than 500000 beer 1. Detailed mold structure diagram is required. 2. The minimum hardness of mold embryo material is 16HRC 3. The internal mold steel is P20 (28 ～ 32HRC) or high hardness (36 ～ 38HRC) 4. Other requirements depend on needs. 4. More than 500 beer, but not more than 100000 beer, and a small amount of molds are produced. 1. Mold structure drawing is required. 2. Mold embryo material P20 (28 ～ 32HRC) can be made of mild steel or aluminum 3. The internal module can be made of aluminum, mild steel or other approved metals 4. Other requirements depend on the need. V. Less than 500 beer, aluminum cast iron or epoxy resin or any material can be used for manual mold or test mold as long as it has sufficient strength to produce the minimum test quantity.