Tips for hand knotted silk rug: part 1, what is hand knotted silk rug? Briefly, rugs are made completely by hand, not machine, and the material is silk, not cotton and wool. Every rug is hand knotted silk rug in Yilong Carpet factory, please enjoy the rug show in the video. Ms. Alice, Email: [email protected], WhatsApp is 0086 15638927921.