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　　ERW steel pipe connection technology, also known as clamp connection technology, has become the current first technology for the connection of liquid and gas pipelines. The application of ERW steel pipe connection technology makes the complicated pipeline connection process simple, fast and convenient, and makes the pipeline connection technology a big step forward.

　　The ERW steel pipe makes the pipeline connection operation simple, which is conducive to construction safety, good system stability, convenient maintenance, and labor and time saving, so it has good economic benefits. Clamp connection is used. Although the price of a single fitting is higher, the overall efficiency of the entire pipe network installation is higher than that of flange connection.

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