95% purity Silicon nitride powder (Si3N4) is light, hard, and has low thermal expansion coefficient. It has high mechanical strength, fracture toughness, and it is resistant to deformation at room temperature as well as at elevated temperature.
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Features Large intensity,high flexbility,good durability Special bottom rubber used,small elongation and long service life Excellent heat-resistance,oil-proot and wearing resistance High transmission efficiency Suitable for band pulley with minor diameter