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Custom Kelly Bar Piling Drilling Rig Spare Parts Interlocking

Tianjin jinyiyuan Heavy Machinery Manufacturing Co., Ltd
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Custom Kelly Bar Piling Drilling Rig Spare Parts Interlocking

Custom Kelly Bar Piling Drilling Rig Spare Parts Interlocking

The inner keyboard and outer keyboard are integrally forged with high-strength steel. Special heat treatment gives this style of kelly high wear resistance, compression resistance and excellent ...

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