The Mass Casting is a recent method developed in Europe to produce mold with ease and less time.
2
采用一般的平均收缩率方法来确定模具型腔的成型尺寸，已难以满足精密注塑成型制品的精度要求。
Using average shrinkage rates of injection-molded parts to decide the dimension of mold cavity can not satisfy the demand of high precision injection-molded parts.
3
方法：用中空栓模具，制备了对乙酰氨基酚中空栓。
Methods: Paracetamol hollow type suppository was produced by the model of HTS.
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