... )Superior quality, low price 4)Prompt deliv It is the raw material for the production of other silk yarns and fabrics. Our ... specifications are 20/22D, 27/29D, 40/44D.1. material: 100% mulberry raw silk2. specification: 20/22,27/29,40/443. quality ... white,or dyed color5. packing: 30kgs/carton, 60kgs/bale 100% Raw Silk Yarn