Introducing a new type of structure for replaceable stem seal sleeve with containing pressure and analyzing its high performance.
介绍了一种新型的可带压更换阀杆密封的结构，分析了该结构的优良性能。
A new type of dry gas seal structure and working principle applied on high pressure ammonia pump were recommended.
介绍了一种新型高压氨泵采用干气密封的结构及工作原理。
The air leak tester of AL-1000A belongs to differential pressure type. It is a high precision detecting transducers. It is much economical and widely applied to seal test of product parts.
1000A系列检漏仪采用差压法检测原理，是一款高精度的检测仪器，广泛应用于多种产品的密封性检测。
The air leak tester of AL-1000A belongs to differential pressure type. It is a high precision detecting transducers. It is much economical and widely applied to seal test of product parts.
1000A系列检漏仪采用差压法检测原理，是一款高精度的检测仪器，广泛应用于多种产品的密封性检测。
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