accessories of coil winding machine ceramic

The ceramic eyelet is used to set less (friction is also less) location of pressure right. For cost reduction , according to using a request, smoothness polishing handicraft is allotted being (0.8 throw Ra) roughly , is throw (Ra accurate 0.4), surpasses essence throwing (Ra0.2). Be that single face is super-accurate at the same time mark throw and two-sided super-accurate throw.