Ecvv Trade
Huayan Petroleum Equipments Co., Ltd

China Manufacturer with main products: 1. Oilfield & Downhole tools (Stabilizer(Forgings), roller reamer forgings, hole opener forgings, Drill Collars, Heavy Weight Drill Pipes); 2...

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Drill collar

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Place of Origin: Beijing Beijing in China


Drill collar Type: Slick Drill collar; Spiral Drill collar Size: 3 1/8"---11" Length: 10'---31' Material: AISI 4145 H Standard: API Spec.7 and SY5144 standard

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