It is better to reopen than to change it. If 0.2 is not produced at all, you can use the template and only change the parts. Otherwise, it would be boring. You mean the shape of the product remains the same, but the thickness has changed. If the die is replaced, the punch and stripper of the shearing project do not need to be replaced, only the lower die parts need to be replaced. Bending depends on the actual situation. The cost should be 1/3 of the new mold.