Ningbo Ocean Fine Ceramics Technology Co., Ltd (NOC)is one of the leading companies in China specializing in manufacture of mechanical seal materials and mechanical seal components. The company was founded by experts and engineers having experiences in this industry for more than 20 years. We mainly produce SIC seal rings, TC seal rings, Alumina ceramic seal rings and Carbon-graphite seal rings. Also we produce bearings made of SiC,TC, Al2O3 and carbon-graphite.