... ) 100% silk yarn twist 2) Specification:20/22D,27/29D,40/44D, f1,f2,f3, 3) Grade:3A ,4A,5A,6A ... holding group headoffice located in Huzhou ,Zhejiang . We make high quality raw silk and twist silk yarn /organzine silk export to ... . material: 100% mulberry raw silk2. specification: 20/22D ,27/29D ,40/44D3. quality: 3A, 4A, 5A,6A4. colour: natural white5. packing: 30kgs ...