陶瓷閥板耐磨、耐腐蝕、耐固體顆粒侵蝕，壽命長，適合各種氣體、液體閥門的密封。工作面精度極高，其平面度可達0.05微米。

The ceramic plates of air valves against abration, corrosion, dust, dirt, and sand. One dynamic plate and one stationary plate are made of extremely hard aluminum oxide .The flatness of seal face is 0.05μm.