The physical methods mainly include manual rust removal and mechanical rust removal, chemical rust removal is generally the use of pickling method, practical application, usually according to the appearance of the workpiece rust status and different post-treatment process, choose different rust removal methods, among which pickling rust cleaning is more commonly used. That is, the iron and steel workpiece with oxide skin or rust is etched in the acid lotion, mainly to remove the oxide or rust layer on the surface of the steel.

Defects such as surface film and surface inclusions can be found and treated by conventional techniques in order to remove them locally from the surface of the deposition layer. Excess foam is formed when soap and surfactants such as saponified fats are brought into the tank.

The bonding and anchoring function between cold wire drawing and cold rolled ribbed steel bar and concrete is outstanding. Therefore, when used in components, the phenomenon of cracking of component anchorage area and damage caused by steel wire slip is fundamentally eliminated, and the load-bearing ability and anti-cracking ability of component end are improved. In reinforced concrete structure, the crack width is smaller than that of circular steel bar or even that of hot rolled thread bar.

High-speed road guardrail net, hexagonal mesh of all kinds of guardrail net, the value of the high-speed road is more prominent, it is not only used in a variety of roads, in a variety of sports ball fields and landslides to take care of, but also to reach a very close utility.