CVD=chemical vapor deposition, it’s kind of thin film technical treatment,CVD-SiC has unique advantages of light,electricity and chemical. Normally SSiC & RSiC as basic materials, Sndou produce recrystallized silicon carbide ceramic from 99.5% SiC powder, also CNC & CVD process supported, as advanced structural ceramics for semiconductor filed. if you want higher higher purity & performance on SiC ceramic,  don’t hesitate to inquiry Sndou SiC Ceramics Co.,Ltd by sndou-sic@qq.com.