I. D. sealing test 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。

youdao

I. D. sealing test 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。

youdao