Imported rubber and high-quality raw materials are adopted. The belt core is wound with a single skeleton fabric, and there is no joint as a whole. The tape covering rubber adopts the formula of high-strength wear-resistant rubber, with long service life, high strength, no deviation, no slip, no peeling, small elongation, high wear resistance, durability, high transmission power, accurate geometric size, good flexibility, cross transmission, shaping and vulcanization. The annular belt has no bell mouth as a whole, uniform belt thickness and stable operation, It is the preferred choice for the installation and use of foundry machinery manufacturers.