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

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Customized Mix Lock & Friction Kelly Bar: test all the sections after producing, and assembling sections in order to confirm the overall fluency of Kelly bars. 5. Delivery time & Package A-7 working days after confirm the order. B-Export ...

Friction Kelly Bar Customized for Various Drilling Rig Model: test all the sections after producing, and assembling sections in order to confirm the overall fluency of Kelly bars. 5. Delivery time & Package A-7 working days after confirm the order. B-Export ...

Interlocking Kelly Bar Customized for Various Drilling Rig Model: test all the sections after producing, and assembling sections in order to confirm the overall fluency of Kelly bars. 5. Delivery time & Package A-7 working days after confirm the order. B-Export ...

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Customized Mix Lock & Friction Kelly Bar