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  • Post time: 14-12-22

    chinese iron nails

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    chinese iron nails chinese iron nails

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  • Spring wire shall have high tensile strength, elastic limit, endurance and fatigue strength, and be resistant to shock and oscillation. The objectives of strength and endurance, especially the prevention of alteration cracks, are key to the consumption of spring steel wires. The inner and outer quality of wire rod directly affect the function of steel wire.

    chinese iron nails

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