·全新材料；采用优质轴承钢钢材制造，比普通20钢内部组织结构紧密、均匀，热处理变形量小，材质性能稳定。

· 优良的使用性能，表面采用高科技手段，镀有自润滑耐磨层，降低了钢令与钢丝圈之间的摩擦系数，上车走熟期极短

· 表面经特殊工艺抛光后锻造度极低。纺纱性能极为稳定。断头少，毛羽少，纺纱质量稳定期较长。

·在确保纱线质量稳定的前提下，使用寿命为原来传统光面钢领寿命的2-3倍。

New material:The ring is made of high quality bearing steel.Compared with the common No.20 steel, its internal structur is compact and uniform, featuring in little deflection og heat treatment and stable material performance.
Excellent persormance;Self-lubrication wearable material coated on the surface og the ring by higg-tech process reduces the friction paameter betwen the ring and the ring traveler,which allows short period to smooth running.
Low roughness resulting from special surface polishing process alows stable spinning,low end breakage and low hairiness.
On the permise of the stable good quality, the service life of the ring is 2 to 3 times than that of the traditional one.