: Guangzhou Changfeng Steel Co., LTD

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Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1

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Guangzhou Changfeng Steel Co., LTD

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Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1

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Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1

SCM440 / 1.7225 / SAE4140 Hot Rolled Alloy Steel with black surface SAE4140 Hot Rolled Alloy Steel is an alloy structural steel Equivalent grades GB(China) DIN(German) AISI(USA) JIS(Japan) 42CrMo 1...

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alloy steel plate

special alloy steel

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