... without offtracking, Teflon Fusing Machine Belt We produce three kinds of fusing machine belts:seamless belt, double-layer jointed belt and ... long service life. Disadvantages: High prices.2, Jointed fusing machine belt: usually with black color, jointed with F46 film. ... deviation, short service life of usually 3 months.3, double-layer fusing machine belt: Advantages: High strength, long service life, ...