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FAQ

  • Q1: Is DERCHI a direct door manufacturer or a trading company?
  • Q2: What is your primary product catalog for global projects?
  • Q3: How do I request an accurate B2B wholesale quotation for my project?
  • Q4: What is your standard manufacturing lead time and delivery schedule?
  • Q5: What warranty coverage does DERCHI provide for international shipments?
  • Q6: What post-purchase support and installation guidance do you offer?
  • Q7: Do your door systems comply with international building codes?