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　　The so-called oil pipeline number is also the batch number of oil pipeline that we often say. The pipe number of oil pipeline is prepared by the manufacturer, and each oil pipeline manufacturer has its own set of rules.

　　The pipe no. of 09 × g62 means the No. 62 oil pipeline of 1420 * 12 produced on the production line of line g in 2009. The pipe No. written by different manufacturers has different meanings.

　　The pipe number of the New Design API 5L X52 Oil Pipeline is generally written by the pipe cutting post on the production line, and the corresponding number shall be written for each oil pipeline cut. When the quality inspector inspects the oil pipeline, he only needs to record the pipe number, and all the inspection data of the oil pipeline shall be written behind the corresponding pipe number. In the future, no matter the oil pipeline is not delivered from the factory, the construction is not carried out, or the pipe is welded For many years, as long as the pipe number is provided and traced back to the oil pipeline manufacturer, we can find all inspection data of the corresponding pipe number according to the pipe number inspection record, including flaw detection record, water pressure record, repair record, geometric dimension inspection record, appearance record, etc.

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