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  • welding

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  • roofing coil nails per box

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  • One: according to the different color of the spray blade, its price is higher than that of the ordinary blade, but the cost performance of the spray blade is much higher.

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  • roofing coil nails per box

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  • roofing coil nails per box

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  • roofing coil nails per box

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  • Annealing is to restore the plasticity of wire, improve the tensile strength of wire, hardness, elastic limit, etc., the wire after annealing is called annealing wire. In the production process of annealing wire, it is very important to ensure the quality of the finished wire, make the wire have certain strength and suitable degree of soft and hard. The annealing temperature is between 800 ℃ and 850℃, and the length of furnace tube is lengthened appropriately for enough holding time.

    roofing coil nails per box

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