C yarn series: ring-spun yarn has Dahua high with T / C65 / 35.50 / 50.80 / 20.40 / 60 and so the ratio 10 12 16 21 24 26 30 32 40 10 C yarn spinning airstream 16 14 21 16 21 cotton slub 32 40 main production of ring C yarn 65 / 35.80 / 20.50 / 50.40 / 60 ratio of high-grade cotton yarn knitting yarn weaving, production count 10 14 16 21 32 40 45.