Features:
1) Material: special high quality carbon steel
2) The working surfaces are helical knurling left and right alternatively or cross
knurling
3) The surface of roller is quenched by high frequency induction current and plated
with hard chromium
4) Smooth surface, no bur, high accuracy and wear resistance, no fiber grasped
5) Stable and no bend, no deformation, can reduce farthest the "machine wave"
on the yarn which usually appears on fine cotton yarn
6) Greatly improve yarn evenness and decrease the wear of bottom apron
7) Suitable for drafting under heavy weighting