After annealing, the wire will become soft, flexibility will increase, iron is a relatively active metal, and more active than hydrogen, so it is a good reducing agent. At room temperature, iron is not easy to react with oxygen, sulfur, chlorine and other non-metallic elements in dry air. Its production cost is lower, its use and scale are also relatively wide, and it has better protective function. Therefore, it is an important material for steel parts in strict working environment.

(5) Excellent process basis to ensure the uniformity of coating thickness, corrosion resistance is stronger;

The utility of the hexagonal net in the playground is very superficial, in each city to build the playground, are less than the shadow of the hexagonal net. In the stadium around the installation of hexagonal nets, not only can improve the stadium group image, but also convenient city residents to carry out a row of activities. Because the size of the plane or the surface of the object in the urban area is relatively small, many stadiums are built in the more prosperous and lively section, with the hexagonal net as a protective barrier, so it greatly reduces the spherical three-dimensional fly out of the field so as to affect the traffic order of bad things.