合成橡胶密封

• Thermoplastics piping systems . non - end - load - bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings . test method for leakightness under internal hydrostatic pressure without end thrust
  热塑料管道系统.压力管和模塑配件的合成橡胶密封环型接合.在无轴向推力时内部流体静力学压力下密封性试验方法