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Henan Depu Steel Co., LTD
Q550D steel plate chemical composition and hydrogen steel plate experimental analysis
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Q550NH weathering steel composition properties and welding performance
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Q690D steel plate mechanical properties Q690D implementation standard
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Introduction of Q690GJC-Z15 medium carbon high wear-resistant steel grades
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Chemical composition and mechanical properties of quenched and tempered high-strength steel WQ890D
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Introduction of S50C Japanese standard steel plate grade
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