Ceramic eyelet:Ceramics china eye fault silk location in applying to the coiling machine and spinning and weaving machinery, is in common use fault silk another piece , is used to demand no high fault silk occasion. Silk thread slides when the job, in china eye outside, for reducing friction, must raise material hardness , smoothness and form. Our company selects and uses 99%'s Al2O3 , hardness greater than HRa88 , density 3.85, surpasses essence throwing Ra0.2.