Detailed Answer
Important but not absolute. Value of brand loyalty: consistent after-sales, interchangeable spare parts, uniform operating habits. Problems with mixed brands: non-interchangeable parts, training costs. Suggestion: unify on one brand per company (LDER or Xingjia) for easier management. But don't sacrifice value for brand.
| Value | Unified after-sales/parts |
| Mixed | Higher cost |
| Advice | Unify brand |
Note:Group procurement with a unified brand simplifies management.