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  • Hot dip galvanizing, also known as hot dip galvanizing, is a method of obtaining a metal covering by immersing a steel member in a molten zinc solution. With the rapid development of high-voltage transmission, transportation and communication, the protection requirements for steel parts are becoming higher and higher, and the demand for hot-dip galvanizing is also increasing. Usually the thickness of electric galvanized layer is 5 ~ 15μm, and the large roll galvanized wire layer is generally more than 35μm, even up to 200μm. Hot dip galvanizing has good covering ability, dense coating and no organic inclusions.

    2 inch concrete nails

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  • Even PVC coated barbed rope in ultra wet areas, will play an unexpected result.

    2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • Post time: 14-10-22

    2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • 2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • The main factors causing metal rust: relative humidity of the atmosphere at the same temperature, the percentage of water vapor content and water vapor saturation content in the atmosphere, known as relative humidity. Under certain relative humidity, the corrosion rate of metal antirust oil is very small, but higher than the relative humidity, the corrosion rate increases suddenly. This relative humidity is called the critical humidity. When the humidity in the atmosphere is higher than the critical humidity, the metal surface will appear water film or water droplets, if the atmosphere contains harmful impurities, dissolved in the water film, water droplets, electrolytes and aggravate corrosion.

    2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • 2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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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.

    2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • The application of electric welding mesh is more widely, at present, it has replaced the use of other parts of the screen, the cost of electric welding mesh is low, the production speed is very fast, so it is very popular. The treatment required before galvanized welding mesh is recrystallization annealing, because the welding mesh must maintain an oxide and no other impurities of pure iron active surface, if you can’t keep its surface clean will lead to poor galvanized effect, galvanized layer and iron material is not tightly combined, so this step is necessary.

    2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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  • 2 inch concrete nails

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    2 inch concrete nails 2 inch concrete nails

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