They are indispensable material when used as high strength, high finishing and insulation material, such as ceramic plunger,sealing ring, surgical knife, IC area and so on.

• 对抗折抗强度绝缘性能高光洁度要求较高的产品是不可缺少的材料。如：陶瓷柱塞陶瓷轴套密封环陶瓷手术刀集成电路电动剃须刀片等。