Unspoken rules on the jade market

As a consumer, buying Hetian jade has a correct understanding and consumption concept for Hetian jade, there are always some businesses that are misleading consumers. A few days ago, Li Xinling, director of the Gold and Silver Jewelry Supervision and Inspection Institute

Common clothing knitted fabric

Common clothing knitted fabric Knitted fabrics are classified according to the weaving method, and there are two types of weft knitted fabrics and warp knitted fabrics. Knitted fabrics are classified according to the weaving method, and there are two types of weft knitted fabrics and warp k