... /44D, 3) Grade:3A ,4A,5A,6A CIQ raw silk yarn 1. material: 100% mulberry raw silk2. specification: 20/22D ,27/29D ,40/44D3 ... /carton, 60kgs/bale It is the raw material for the production of other silk yarns and fabrics. Our main specifications are 20/22D ... , 27/29D, 40/44D.we sincerely invite buisnessmen from domestic and foreign ...