This series is made from 20/22D natural mulberry silk, including: 1. 20/22D f4 S150 6"500g/cylinder, 6"250g/cylinder 2. 20/22D f4 S300 6"500g/cylinder, 6"250g/cylinder These products can be used in the production of scarf, neckerchief
and fabrics, and we offer a color chart for your choice. It can
offer bright color and good fastness.