China mein log apne katay huye nails bech kar paisay kama rahe hain! Hebei ki eik aurat ne unhein online 150 yuan (21$ per kilo) ke rate par bechna shuru kar diya. Yeh nails traditional Chinese medicine mein dawaon ke liye istemal hote hain. Sirf hath ke nails qabool hote hain, paon ke nahi.