Shanghai Hanyuan Special Ceramic Co., Ltd., founded in 1998, is professional at hot pressing silicon nitride products manufacturing with the internationally advanced & high-tech sintering techniques and formula. The company integrates independent innovation, production, distribution and technical services into a whole.The company attended the constitution of Chinese National Standard of Silicon Nitride Heating Technology & advanced in the field with its decade of research, development and manufacturing experience. The main products are silicon nitride electric heating devices, silicon...