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- +86 13720060320
- lanna@haitangs.com

FAQs
Product & Technical Specifications
What types of torque hinge solutions do you offer?
How do you ensure torque consistency across large production runs?
What is the expected cycle life of your friction hinges?
Are your hinges corrosion-resistant for outdoor or medical use?
Can your hinges hold a position at any specific angle?
Customization & Engineering Support
Can you customize torque values for a specific application?
Do you provide 3D CAD models for design integration?
What is the typical lead time for a custom prototype?
Can you handle “One-Way” torque requirements?
What information is needed to start a custom quote?
Ordering & Global Logistics
What are your standard lead times for mass production?
Do you have a Minimum Order Quantity (MOQ)?
How are the products packaged for international transit?
Which shipping incoterms do you support?
How do you handle supply chain stability for long-term contracts?
Quality Assurance & After-Sales
What certifications do your manufacturing facilities hold?
What is your policy on defective or non-conforming parts?
Do you provide material test reports (MTR) and Certificates of Conformance (CoC)?
How do I troubleshoot a hinge that feels too “stiff” or “loose” after installation?
Can you provide samples for testing before I commit to a bulk order?