I. D. sealingtest plug for high pressure hydrostatic testing of pipe, pipelines and pressure vessels.
密封的测试插头用在高水压测试管，管路和压力容器上。
2
This paper analyzes the leakage and its influence factors of the common-rail accumulator type electronic control injector. The static and dynamic sealingtest is done.
全面分析了共轨蓄压式电控喷油器的泄漏部位及影响因素，进行了静态和动态的密封性试验。
3
This paper describes the characteristics, rapid simulation life test, sealingtest and over-load test technology of a new model rake-loading reducer used for a scraper loader.