99% 99.7% Alumina Ceramic Insulation Ring Spacer
2021-1-1 · Main features. Ceramic rings for etching are made of high purity alumina ceramics, zirconia ceramics and silicon carbide ceramics. They have. high hardness, good wear resistance, good accuracy and good resistance to plasma bombardment. Moreover, high purity and high performance engineering ceramics can solve the problems of plasma corrosion ...
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