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Pipeline repair. After back pressure is stopped, if the pressure does not drop on pressure gauge, it can be proved that the pressure resistance of the pipeline is up to the standard; on the contrary, it can be proved that the tightness of the tested pipeline is not up to the standard, and there is a leak that causes the pressure to drop.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.