Including: punching press process design, arrange kind design, grade enter mould structure design.
包括：冲压工艺设计、排样设计、级进模结构设计及主要工作部件设计等。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
设计：分层抽样，随机分组对照，量效分析。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
设计：分层抽样，随机分组对照，量效分析。
应用推荐