### 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 major error of incorrect translation is missing content from the correct translation at "no indication instead of no brand". There is a major error of incorrect translation has stylistic problems at "all domestic replacement products instead of all domestic-made substitute products".

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