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  • Carbon spring steel wire is made of high carbon and high quality carbon structural steel or carbon tool steel wire rod, and its chemical composition, gas content and non-metallic inclusion must be strictly controlled according to the use of the spring. In order to reduce the surface defects and decarbonization layer, the billet produced wire rod should be ground on the surface and peeled when necessary.

    white drywall screws

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  • The production process of large coil galvanized wire is relatively simple. The wire after cleaning is put into electroplating solution first. Of course, the plating solution should contain zinc oxide, a direct current of steel, another zinc plate in the plating solution. The zinc is transferred to the surface of the steel as a molecule. If it shows a bright and beautiful color, the wire is coated with zinc.

    white drywall screws

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    white drywall screws white drywall screws

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  • white drywall screws

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    white drywall screws white drywall screws

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  • galvanized

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  • Post time: 30-09-22

    white drywall screws

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    white drywall screws white drywall screws

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