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