Plastic mold grades are divided into grades according to production volume, product accuracy, customer requirements and quotations. Mass production molds, medium production molds, and small production molds.
1. Detailed mold structure drawing is required.
2. The minimum hardness of the mold material is 28 HRC. 
3. The inner mold steel with glue position must be pre-hardened to 48～50HRC. Other parts such as row position, pressure lock, and pressure bar should also be hardware. A
4. The thimble plate must have a mid-care. 
5. To install straight lock or oblique lock.
6. For all waterways, it is recommended to use electroless nickel or 420 stainless steel as the template. This can prevent rust and clean up the garbage.
7. The upper mold, lower mold and row position should have temperature control.
8. There should be wear-resistant blocks in the row position and pressure lock.
A
Mass production of molds
1. Detailed mold structure drawing is required. 
2. The minimum hardness of the mold material is 28 HRC. 
3. The internal mold steel with glue position should be hard to a minimum of 48-52HRC, and the remaining parts such as row position, pressure lock, and pressure bar should also be hardware.
4. It is recommended to use straight lock or oblique lock.
5. If the following items are used in the proposed quotation of the following items, it is necessary to check whether it is necessary.
A. The thimble board needs to be held by the trustee. 
B. There should be wear-resistant blocks in the row position and pressure lock.
C. Electroplating water transport hole.
D. Plating cavity.
A
Medium production mold
1. Detailed mold structure drawing is required.
2. The minimum hardness of mold material is 16HRC.
3. The inner mold steel is P20 (28～32HRC) or high hardness (36～38HRC).
4. The remaining requirements depend on the needs.

Production of small quantities
1. Need mold structure drawing.
2. Mold material P20 (28～32HRC) can be mild steel or aluminum.
3. The inner module can be made of aluminum, mild steel or other approved metals. A
4. The remaining requirements depend on the needs.