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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
- 2022-09-28 [Download Area] API Q1 Certificate
- 2022-09-28 [Certificates] API Q1 Certificate
- 2022-09-28 [Certificates] API 5DP Certificate
- 2022-09-28 [Certificates] API 5L Certificate
- 2022-09-28 [Certificates] API 5CT Certificate
- 2022-08-10 [Certificates] Occupational Health and Safety Management System Certificate
- 2022-08-10 [Certificates] Environmental Management System Certificate
- 2022-08-04 [Certificates] Lloyd Certificate for Billets of Carbon-Manganese & Alloy Steel Pipes
- 2022-08-04 [Certificates] Lloyd Certificate for Carbon-Manganese & Alloy Steel Pipes
- 2022-07-21 [News & Events] HYST Product Serves CNPC’s First 9000m+ Deep Well
- 2022-06-24 [News & Events] HYST Awarded A-class Excellent Supplier by Dongfang Boiler
- 2022-06-09 [Certificates] DNV Certificate for Carbon-Manganese & Alloy Steel Pipes
- 2022-04-14 [News & Events] HYST’s Two Products Awarded Golden Cup Quality Product
- 2022-03-21 [Certificates] KR Certificate for Structural Steel Pipes
- 2022-03-17 [News & Events] HYST Casing Successfully Applied in China’s Deepest Designed Gas Well Onshore
- 2022-03-07 [Certificates] DNV Certificate for Structural Steel Pipes