1) 100%mulberry raw silk twist silk yarn 2) Specification:20/22D,27/29D,40/44D, 3) Grade: ... 3A ,4A,5A,6A raw silk and twist silk yarn /organzine silk (certificate for raw silk 5A-6A grade )SILKROAD ... ,6A4. colour: natural white5. packing: 30kgs/carton, 60kgs/baleAlso twist silk yarn we can offer .20/22D f1 S650×2Z650 44"65g20 ...