When evaluating a carpet factory, you must focus on material composition, pile density, and backing technology. For high-traffic commercial areas, prioritize Solution Dyed Nylon (SDN) for its superior colorfastness and wear resistance. Ensure the pile weight meets your durability requirements (e.g., 20oz to 40oz for commercial use). Additionally, verify the tuft bind strength and the type of secondary backing used, such as PVC, Bitumen, or Eco-friendly Non-woven fabrics, to ensure dimensional stability.