Ceramic V-groove: using blue zirconia ceramics, compared with white zirconia, blue recognition is higher, compared with black zirconia, blue is not easy to absorb heat, good abrasion resistance, etc. through the V-shaped groove to guide two The center and high consistency of the optical fiber make the optical fiber melt quickly under the high temperature generated by the instant high-voltage arc and can be accurately butted and fused together; now it is possible to process single-slot single V, single-slot double V, multi-slot single V, and multi-slot double V;

Machinable accuracy: material porosity <0.0025mm, V groove bottom R can be less than 0.03mm, V groove opening and height tolerance can be controlled within 0.005; the finish on both sides of V groove can reach R0,2mm;