我用原本的模具下去修改，還是重新再開一套模具?因為一個模具就是一個產品

我用原本的模具下去修改，還是重新再開一套模具?因為一個模具就是一個產品編號

結果 (英文) 1:

Do I use the original mold to modify it, or to open a new set of molds?

Because a mold is a product numbe

結果 (英文) 2:

Do I use the original mold to modify it, or do I open another set of mold?
Because a mold is a product numbe

結果 (英文) 3:

Shall I use the original mold to modify it, or open a new mold? Because a mold is a product number.