这些弹簧和垫圈通常开发以满足负载和空间的要求。
These springs and washers are usually developed to meet load and space requirements.
我们采用的是具备高冲击性结构的共聚物，采用O型弹簧垫圈密封和清洗阀防水设施。
Our high-impact structural co-polymer cases are waterproof with an O-ring seal and purge valve.
在平垫圈和螺母之间还装有弹簧垫圈。
A spring gasket is also arranged between the flat gasket and the nut.
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