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Products > material testing > Langfang KongRui Machinery Equipment Co.,Ltd | Similar Products

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Customized Mix Lock & Friction Kelly Bar: materials, professional technical will pay attention to the key parts by manual welding, Detector will test all the sections after producing, and assembling sections in order to confirm the overall ...

Friction Kelly Bar Customized for Various Drilling Rig Model: materials, professional technical will pay attention to the key parts by manual welding, Detector will test all the sections after producing, and assembling sections in order to confirm the overall ...

Interlocking Kelly Bar Customized for Various Drilling Rig Model: materials, professional technical will pay attention to the key parts by manual welding, Detector will test all the sections after producing, and assembling sections in order to confirm the overall ...

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Customized Mix Lock & Friction Kelly Bar