1. What is the fibre origin and micron count? 2. Are RWS / GRS certificates current? 3. What is the minimum order per colourway? 4. How fast is a sealed sample? 5. Which finishes do you run in-house? 6. What are your shipment and inspection terms?
Verified mills on Puyuan Fashions publish this information up front, so you can shortlist before you send an RFQ.