concrete coated nails

concrete coated nails

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concrete coated nails concrete coated nails

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  • concrete coated nails

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    concrete coated nails concrete coated nails

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  • galvanized

    concrete coated nails

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    concrete coated nails concrete coated nails

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  • The coating of electrode plays a very important role in the welding process. If adopting the light of the coated electrode welding, is in the process of welding, oxygen and nitrogen in the air can invade the molten metal, the metal iron and beneficial elements carbon, silicon, manganese oxide and nitride oxide and nitride formation, and remain in the weld, weld slag or crack. And melt into the molten pool in the gas can make the weld produces a large number of pores, these factors can make the mechanical properties of the weld is greatly reduced, at the same time to make the weld brittle.

    concrete coated nails

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    concrete coated nails concrete coated nails

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