20m Friction Kelly Bar Foudation Construction Piling Tool

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Beijing Jietaihongli Technology Co., Ltd.

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City: Beijing

Province/State: Beijing

Country/Region: China

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20m Friction Kelly Bar Foudation Construction Piling Tool

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20m Friction Kelly Bar Foudation Construction Piling Tool

Foudation Construction Piling Tool Friction Kelly Bar kelly bar A hollow bar attached to the top of the drill column in rotary drilling rig. Usuall there are interlocking kelly type,frictional kelly ...

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20m friction kelly bar

foudation construction piling friction kelly bar

20m kelly bar piling

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