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In 1876, the French Lavoisier proposed basic principles of gas cutting. In 1887, the United States successfully tested

The present invention discloses a tape cutting welding machine, which includes tape cutting mechanism and located on t

Milling mainly by transmission gear while drilling and milling machine mainly by the belt drive and universal milling

Almost all of the performance and wear resistance of the material have a relationship, and the wear mechanism in diffe

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