1. Check Manufacturing Capability
Explain:
· Factory ownership
· Production capacity
· Quality management
2. Evaluate Product Quality
Important factors:
· Purity
· Stability
· Batch consistency
· Documentation
3. Consider Export Experience
Include:
· International shipping
· Packaging
· Compliance documents

4. Technical Support Matters
Explain:
A professional supplier should provide:
· Product recommendations
· Application guidance
· Technical information
5. Why Choose Zhongke Rongda?
Highlight:
· Manufacturer
· Production facility
· R&D capability