超重型涂层砂带，强度高，机械磨削性能好，具有良好的耐热性和防堵塞性能。适用范围：主要用于钛合金、不锈钢、精密铸造、体育运动器材等难磨金属的磨削。
Ultra-heavy polyester cloth backing, with high strength, good machinery property, heat-resistance and anti-clogging. For heavy load polishing of titanium alloy, stainless steel, precision casting and exercise e