What material is this?

“This is really nice — what’s it made of?” is the most expensive question you can fail to ask in Chinese sourcing. 材料 (cái liào, material) is the foundation of every product’s cost, quality, and performance. Two products that look identical in a photo can differ in material composition by a factor of 3-5× in cost and a lifetime in durability. The Chinese factory will tell you the material if you ask — but you have to ask the specific question, not the general one.

The general question “What material?” (什么材料) will get you a general answer: “cotton,” “metal,” “plastic.” The specific question gets you actionable information: 具体成分 (specific composition) — “65% cotton 35% polyester, 200gsm jersey knit.” 有没有材料规格书 (is there a material spec sheet) — a document listing grade, thickness, treatment, and source. The difference is the difference between buying a product and understanding it. A buyer who asks for the material spec sheet can compare quotes from different factories on an apples-to-apples basis. A buyer who accepts “it’s cotton” is comparing prices without knowing if they’re comparing the same thing.

The material question is especially important when comparing quotes. A factory quoting 30% less than competitors is almost certainly using different materials — thinner fabric, lower-grade metal, cheaper plastic. The price difference is not magic; it’s material substitution. Asking 这个价格对应的是什么材料 (what material corresponds to this price) and 如果用更好的材料, 价差多少 (if we use better materials, what’s the price difference) gives you the upgrade path. The factory can produce at multiple quality levels. Your job is to define which level you’re buying, and material is how you define it. Without material specs, you’re buying promises. With them, you’re buying products.