为了能承受一定的外部压力并很好地实现密封，设计并采用粘性介质压力成形工艺制造了不锈钢球壳阀芯。
In order to endure certain external pressure and seal well, the stainless steel spherical shell is designed and manufactured.
盖与壳身之间设有密封圈，并用不锈钢螺钉紧固。
Between cover and shell body is arranged sel washer fastened by stainless screw.
盖与壳身之间设有密封圈，并用不锈钢螺钉紧固。
Between cover and shell body is arranged sel washer fastened by stainless screw.
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