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drywall screw manufacturer in china

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  • Cold galvanized is in the plating tank through the current unidirectional zinc gradually plated on the metal surface, production speed is slow, uniform coating, thin thickness, usually only 3-15 microns, bright appearance, poor corrosion resistance, generally a few months will rust. Compared with electrogalvanizing, hot galvanizing has lower production cost and less impact on the environment than electroplating.

    drywall screw manufacturer in china

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  • The anticorrosion of these raw materials are very different, the use of life is not the same. Cattle fence cold galvanized, also known as electroplating, galvanized little, rust in rain, but the price is cheap, the use of life in 5-6 years. Hot dip galvanizing (low zinc and high zinc) zinc content in 60 grams to 400 grams, the use of life is about 20-60 years, corrosion resistance is general.

    drywall screw manufacturer in china

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    drywall screw manufacturer in china drywall screw manufacturer in china

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  • drywall screw manufacturer in china

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    drywall screw manufacturer in china drywall screw manufacturer in china

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  • drywall screw manufacturer in china

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    drywall screw manufacturer in china drywall screw manufacturer in china

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    drywall screw manufacturer in china

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