Rotary shaft lip-type seals incorporating thermoplastic sealing elements—Part 6:Properties requirements for the thermoplastic and elastic material
全国液压气动标准化技术委员会(SAC/TC 3)
GB/T 21283的本部分规定了密封元件为热塑性材料的旋转轴唇形密封圈（以下简称密封圈）用热塑性材料聚四氟乙烯（简称PTFE）与弹性体包覆橡胶材料的分类、要求、检验规则及包装和贮存。
本部分适用于密封元件是以热塑性材料聚四氟乙烯为基材制成的旋转轴唇形密封圈。
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