sealing steel shell
... 钢壳围堰 steel shell cofferdam 密封钢壳 sealing steel shell 钢壳构造 cased structures ...
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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.
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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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