4d common nail

4d common nail

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4d common nail 4d common nail

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  • barbed

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    4d common nail 4d common nail

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  • cold

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    4d common nail 4d common nail

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  • The chromium-plated layer has good thermal property. When the temperature is heated below 500℃, its luster and hardness are not changed obviously. When the temperature is higher than 500℃, the initial oxidation and discoloration occur, and the hardness decreases when the temperature is higher than 700℃. The friction coefficient of chrome coating is small, especially the dry friction coefficient, which is low among all metals. So the chrome coating has good wear.

    4d common nail

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    4d common nail 4d common nail

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