Advanced processing method to make the running track once and for all. It instead of the old processing steps, its measurement error in precision is controlled within 0.01mm.
Its geometry is nearly the same and its surface roughness is less than 0.2μm. Can get the microhardness about Hv800 on its surface. It also has compact and refined Mar-tensitic structure.
It has admirable abrasion resistance, its life can reach 3 to 5 years,can keep the quality of yarn stable chronically.
Superior performance,reduce the filoplume replace the imported steel ring,meet the high-requirement of compact spinning.
