roofing nails stainless steel

The first is the cost of raw materials galvanized sheet and galvanized wire, some specifications and waste calculation and so on. Then there is the cost of mechanical processing process and manual processing process. Finally, there is the cost of packing and shipping. In recent years, due to the rapid development of thorn rope manufacturers, so the profit margin of blade thorn rope is not particularly broad.

1. The diameter of the raw material and the thickness of the diameter are directly affected;

The advantages of hook net hook net raw material resolution of its use, used for road guardrail, sports stadium fence, etc., because the weaving characteristics of hook net can make the guardrail both beautiful and useful, have a good ability to hit, and can extend the service life, not easy to fade to prevent the effect of beautiful. And can also be used for family interior decoration, because its plasticity is very good so the use is also very much, is now many local are widely used.

Crevice corrosion is a kind of corrosion in small area, especially in concealed position, which can form vicious corrosion cycle. Almost all the crevice corrosion can occur in a metal alloy, with gas containing active anionic neutral medium Z is easy to cause crevice corrosion, crevice corrosion often occurs in the aperture of 0.025 to 0.1 mm, because of long time gathered, the cracks will exist a series of impurities, coupled with the external environment of damp easily corrode the area of the gap is small.

In the electroplating tank through the current unidirectional make zinc plating on the metal surface gradually, the production speed is slow, the coating is uniform, the thickness is thin, usually only 3-15 micron, the appearance is bright, smooth, beautiful, poor corrosion resistance, generally will rust in a few months. The production process of hot wire plating mainly includes: preparation of the original plate → pre-plating treatment → hot dip plating → post-plating treatment → finished product inspection, etc. According to custom often according to plating pretreatment method.