密封圈Sealing Ring
阀门Valve 机械密封件Mechanical Seal
聚氯乙烯Pvc
耐油胶Oil Resistant Rubber
聚氨脂Polyurethane
硅胶Silica Gel 氟橡胶Fluorine Rubber
丁腈Nitrile
橡胶Rubber
石墨Graphite
密封生产原材料Seal Production of Raw Materials
侧向压力系数Lateral Pressure Factor
侧向比压Lateral Specific Pressure
轴向比压Axial Specific Pressure
