Now the function of mechanical products, structure, shape and material of the continuous improvement, precision, produce progress by mass produce type to many varieties small batch conversion.
现在机械产品的机能，结构，外形和材料的不断的改进，精度不断进步，出产类型由大批量出产向多品种小批量转化。
Aimed at small products with small batch and thin material, considering to lower die costs, a pair of simple progressive punching die is designed.
针对批量小、材料薄的小型产品，考虑到尽量低的模具成本，设计出一副简单的级进冲裁模。
Single-item or small batch production enterprises usually adopt project management method to organize production, because their products are very difficult to be planned and controlled.
在单件、小批生产类型企业中，由于其产品具有一次性、技术含量高、重复率低、难以计划与控制等特点，因此通常采用项目管理方式组织生产。
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