corrugated metal roofing nails

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  • Enclosure to calculate the use of barbed rope, so as to reasonably plan to purchase the amount of barbed rope to facilitate construction

  • The drawing process of the waste product has a great influence on the function of the product. The general selection of about 90% of the larger total surface reduction rate (see area reduction rate) and the smaller pass surface reduction rate (about 23%), to ensure the endurance of the product. On the high strength spring steel wire, pulling should be controlled each time the temperature of the steel wire outlet is lower than 150℃, to prevent the steel wire due to strain aging and change the crack, which is the main drawback of steel wire waste.

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