1 concrete nail

1 concrete nail

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1 concrete nail 1 concrete nail

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    1 concrete nail 1 concrete nail

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  • Galvanizing refers to the surface treatment technology of plating a layer of zinc on the surface of metal, alloy or other materials to play the role of aesthetics and rust prevention. The main method used now is hot galvanizing. However, hot dip galvanizing industry has been developed with the rapid development of cold strip rolling in the past 30 years. The production process of hot-galvanized sheet mainly includes: raw plate preparation → pre-plating treatment → hot-dip plating → post-plating treatment → finished product inspection and so on.

    1 concrete nail

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    1 concrete nail 1 concrete nail

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  • 1 concrete nail

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  • The reason why there are black spots in wire mesh welding is that the action of wire feeding should be timely filled in the melting time, and the development should be appropriate. There is no argon gas, long burning, large current, long distance, blunt tungsten needle and high molten pool temperature are the fundamental reasons for blackening. Continuous burning, is about active welding machine energy selection, machine welding will appear black spots.

    1 concrete nail

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    1 concrete nail 1 concrete nail

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  • 1 concrete nail

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    1 concrete nail 1 concrete nail

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