盛钢桶底有个叫作水口的孔，由一根直立的耐火材料做的塞棒堵住。

There is an opening in the bottom of the ladle called nozzle which is sealed with a vertical refractory stopper.

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盛钢桶底有个叫作水口的孔，由一根直立的耐火材料做的塞棒堵住。

There is an opening in the bottom of the ladle, called nozzle, which is sealed with a vertical refractory stopper.

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主要用途：火花塞、电子基片、电真空管、电子陶瓷基体、高级耐火材料等。

Main Purpose: spark plug, electronic substrate, electric vacuum tubes, ceramic boby, etc.

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