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  • Guardrail in the purchase of how to install the correct is very important, and the installation of guardrail is important, the requirements of height and material are very strict.

  • Similar to two materials in the coating part melting together, and coating thickness can reach 100 microns, so high corrosion resistance, salt spray test 96h no problem, equivalent to 10 years under the usual environment; Cold galvanizing is electroplating at room temperature. Although the thickness of the coating can also be controlled, the binding strength and thickness of the coating are relatively low, so the corrosion resistance is poor.

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  • 3. Keep the rinse water clean after pickling the steel wire
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