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德国蒂森克虏伯钢铁公司生产的套管中有1/4是抗HIC(氢致开裂)钢管,该公司计划提高抗酸性油气管的强度,将抗HIC钢管的强度提高到X70以上钢级。如果运输的石
One quarter of the tubes produced by ThyssenKrupp Steel in Germany are anti-HIC (Hydrocracking) steel tubes. The company plans to increase the strength of acid-resistant oil and gas pipelines and increase the strength of anti-HIC steel tubes to over X70 . If you transport stone