氧化铝陶瓷密封环具有耐高温、耐化学腐蚀、耐磨损、密封性好的优点，能使用于各种耐酸、耐碱、耐油的密封泵及其他密封产品，广泛适用于石油、化工、制药、汽车制造、军工、航空、冶金、印染、食品、机械等诸多行业的密封。

Ceramic seal faces have the property of the resistant high temperature, resistant-corrosion, resistant-wearing and good sealing and are widely used in the spacecraft, machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on.

      硬质合金是机械密封摩擦材料中用量较多的硬面材料，使用范围较广泛，耐磨性好，抗弯强度高，导热系数高，膨胀系数小，是所有硬面材料中耐热冲击系数最高的材料。

Tungsten carbide is widely used as seal faces with resistant-wearing, high fractural strength, high thermal conductivity, small heat expansion co-efficent. It is the best material to resist heat and fracture in all hard face materials.

碳石墨材料具有良好的耐腐蚀性，较高的导热系数，低的摩擦系数，自润滑性好，膨胀系数小，可制作各种形状规格的密封环、石墨轴承、石墨摩擦片等产品，是机械密封较理想的摩擦副材料。

Graphite has the good property of good resistant-corrosion, high thermal conductivity and lower friction, good self-lubrication, the smaller expansion. They can be made into the seal faces, bearings and so on. It is ideal to choose it as the frictional mating rings.