Latest developments

03

2022

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09

Production Process of Taper Drill Rod

Production process of ordinary finished steel brazing: incoming inspection of hollow steel-material screening-straightening-water needle hole processing-impact end processing-pier squeeze collar plate-collar plate detection-brazing slight processing



Production process of ordinary finished steel brazing rod: incoming inspection of hollow steel-material screening-straightening-water needle hole processing-impact end processing-pier squeeze collar plate-collar plate detection-brazing rod slight processing-drill rod heat treatment-impact end heat treatment-shot blasting-straightening-detection-painting anticorrosion-packaging-warehousing