Overall carburizing finished brazing production process

Overall carburizing finished brazing process: hollow steel incoming inspection-material screening-straightening-water needle hole processing-impact end processing

Overall carburizing finished brazing production process:Incoming inspection of hollow steel-Material screening-Straightening-Water needle hole processing-Impact end machining-Pier squeeze collar plate-Collar plate inspection-Drill slightly machined-Overall carburizing, quenching and tempering of drill rod-Heat treatment inspection-shot blasting-Straightening-Overall detection-Painting anti-corrosion-Packaging-Receipt

A brief history of the development of hydraulic rock drilling machinery and equipment

1. Tail shank Hex22 x 108mm, R25 thread, L:600mm

A brief history of the development of hydraulic rock drilling machinery and equipment

1. Tail shank Hex22 x 108mm, R25 thread, L:600mm

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Pay attention to lotus mountain drilling tools:

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