... balls.With the excellent performances such as Low density, high strength, high hardness, high toughness, corrosion-resistant, abrasion-resistant, anti-oxidation, thermal ... chemical industry. The indexes of each precision level of ceramic balls are following: GradeVdwsSPHVdwlRaG30.05-0.08≤0.08≤ ... of elasticityGPaAtmospheric pressure sintering >3.20750-10001500-17007-8310 Silicon Nitride Ceramic Ball