### Chinese: 答：未注明原厂品牌的一律国产替代产品。
### English: A: There is no indication of the original brand of all domestic replacement products.
### Errors: There is a minor error at "A". There is a minor error at "is no indication of". There is a minor error at "original brand of all domestic replacement".

### Improved English: Answer: Those with no specified original brand are all domestic-made substitute products.