The lubricator contains a tight-fitting rubber or bag preventer that prevents fluid loss and is held together with quick union.
防喷管包括一个紧配合的橡胶或筒式防喷器，以防止流体散失并可用快速装卸由壬连接在一起。
The lubricator contains a tight-fitting rubber or bag preventer that prevents fluid loss and is held together with quick union.
防喷管包括一个紧配合的橡胶或筒式防喷器，以防止流体散失并可用快速装卸由壬连接在一起。
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