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Square Kelly | API Rotary Kelly
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Square‑section drill pipe compliant with API 7‑1 standards. Manufactured from high‑strength alloy steel for reliable torque transmission. Fully heat‑treated and subjected to nondestructive testing (NDT), with custom dimensions available.
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We can customize high-performance drill pipe assemblies of various sizes according to customer needs.
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052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
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