Advantage:
1.Handiness in use,top wear-resistence,no deformation,good ageing-resistence,long service circle,a through solution for the defective problems of every 3 month-correction and quick deformation and easily wear-off.
2.Designed to regulate the equilibrium automatically,the rubber ring is always in a tension-balanced state,thanks to which the yarns are uniformly spun along with a big reduction of fat yarns,thin yarns and cotton flosss,a noticeable lowering of the USTER yarn index CV percentage.
3.The bowing problem of the rubber ring is thoroughly tackled,much better than the iron upper pin in this aspect,extending the service life a lot.