塑料管道系统。热塑塑料压力管道用的弹性密封环型接头和机械接头。外部液压条件下防漏密封试验方法。
Plastics piping systems. elastomeric sealing ring type joints and mechanical joints for thermoplastics pressure piping. test method for leaktightness under external hydrostatic pressure.
塑料管道系统。玻璃纤维增强式热固性塑料元件。检验带有弹性密封件的刚性锁定管座套筒接头设计的试验方法。
Plastics piping systems. glass - reinforced thermosetting plastics components. test methods to prove the design of rigid locked socket - and - spigot joints with elastomeric seals.
特别是对于井下施工，该系统可对传统弹性密封器的功能进行扩展，形成一套全新的井筒密封系统。
For downhole applications in particular, it can be used to extend the performance of traditional elastomer seals and therefore enables an entirely new suite of wellbore sealing systems.
特别是对于井下施工，该系统可对传统弹性密封器的功能进行扩展，形成一套全新的井筒密封系统。
For downhole applications in particular, it can be used to extend the performance of traditional elastomer seals and therefore enables an entirely new suite of wellbore sealing systems.
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