发明授权
US5664951A Inlet conduit adaptor for underground storage tank 失效
地下储罐的进水管道适配器

Inlet conduit adaptor for underground storage tank
摘要:
A swivel adapter for an inlet conduit to an underground storage includes two relatively rotatable components. The relative rotation between the components prevents sealing loss between the adapter and the inlet conduit when the adapter is subjected to torque.
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