ile:加密面区域铣削加工.exe file:常用钢的牌号、成分、热处理、性能及用途.pdf file:硬度换算表.doc file:模具常用材料.pdf file:塑胶材料的特性表.doc file:模具名称说明.exe file:塑料名称.xls file:DFM模板.ppt file:塑料收缩一览表-造型必看.txt