Abstract: Based on the comprehensive analysis on the plastic parts structure service requirement, mounding quality and mould menu factoring cost. A corresponding injection mould of internal side core pulling was designed. By adopting the multi-direction and multi-combination core-pulling. A corresponding injection mould of internal side core pulling was designed, the working process of the mould was introduced09年小升初语文考点汇总一、语文知识积累1、三国演义中的人物很多都有绰好，如“水镜先生”是（司马徽）、“卧龙”是（诸葛孔明 ）、“凤雏”是（庞统）、“美髯公
