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2018-12-05 [Products & Services] OCTG
2018-12-05 [Products & Services] Premium Connection
2018-12-11 [Products & Services] Pressure Vessel Pipe
2018-12-11 [Products & Services] Mechanical Processing Pipe
2025-08-29 [Certificates] API 5CT Certificate
2025-08-29 [Certificates] API 5L Certificate
2025-08-29 [Certificates] API Q1 Certificate
2025-08-29 [Certificates] API 5B Certificate
2025-07-30 [Certificates] Lloyd Certificate for Carbon-Manganese & Alloy Steel Pipes
2025-07-30 [Certificates] Lloyd Certificate for Billets of Carbon-Manganese & Alloy Steel Pipes
2025-05-29 [Certificates] DNV Certificate for Structural Steel Pipes
2025-05-09 [Certificates] DNV Certificate for Fluid Pipes
2025-02-23 [News & Events] HYST Contributes to the Successful Drilling of China
2025-02-23 [News & Events] HYST‘s Products Applied in the National Major Project
2024-08-02 [Certificates] CPR Certificate
2024-05-13 [Certificates] Production License of Special Equipment
2024-05-08 [Certificates] BV Recognition Certificate
2024-03-29 [Certificates] PED Certificate
2024-03-12 [Certificates] ISO9001 Certificate
2024-03-01 [Certificates] AD 2000

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