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roofing nail box roofing nail box

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  • Cyanogen bath has alkaline zincate bath, ammonium bath, sulfate bath and ammonia chloride bath. Cyanide galvanized solution plating ability is good, the coating lubrication, in production has been selected for a long time, steel mesh chromium plating: chromium plating layer has a high hardness, according to the bath composition and process conditions are different, the hardness can be changed in a large scale 400~1200HV.

    roofing nail box

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    roofing nail box roofing nail box

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  • roofing nail box

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    roofing nail box roofing nail box

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