### Chinese: 4.重物产品一般发物流，另行联系。
### English: Heavy goods generally ship, separate contact.
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "generally ship". There is a major error of problems with grammar, other than orthography at "separate contact". There is a major error of incorrect translation has stylistic problems at "Heavy goods generally ship, separate contact.".

### Improved English: 4. Heavy products are sent by express companies; please contact us separately.