Stamping(冲压）

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Attachment for you ref...
Some introduction books about sheetmetal stamping...

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Stamping 冲压
8 `; [" e8 P. x% G% bAttachment for you ref...附件供您参考
4 L5 t6 W% s0 \4 j: oSome introduction books about sheetmetal stamping...一些关于钣金冲压入门书籍

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my god
9 W+ v1 ]! X. L, ]' o' e8 Ioh my god
9 E/ K( K  i" ?. vyou are not a man yet
- [+ L/ S$ B$ {/ B- pyou're one god already.
2 N# O. [, f7 N! f. @$ j  f& Ithank you very much.