防跳線器：用于繞線時防止跳線，其中間瓷輪由超精拋光制成，配有高速軸承，使繞線時跳動在很小的范圍內(nèi)，保持了繞線時張力原穩(wěn)定性。
Wire jump preventer: Applicable for wire jump preventing during winding. The niddle ceramic roller is made by precise polishing and matched with high-speed bearing so that jump during winding can be minimized to ensure the tension stability.
