: Guangzhou Changfeng Steel Co., LTD

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Alloy Structure Steel Round Bar SAE4140/SCM440 For Auto Parts

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Guangzhou Changfeng Steel Co., LTD

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Alloy Structure Steel Round Bar SAE4140/SCM440 For Auto Parts

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Alloy Structure Steel Round Bar SAE4140/SCM440 For Auto Parts

Alloy Structure Steel Round Bar SAE4140/SCM440 For Auto Parts It is an alloy structural steel, below is the specification of Engineering Steel Bar SAE4140: High strength, high hardenability, good ...

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air hardening tool steel

h13 tool steel

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