358 installation of guardrail and purchase of accessories and screws

The overall manufacturing process of 358 dense grain guardrail shall be particularly strict. In addition to the firmness of welding points on the mesh surface, there is also the flatness of the mesh surface which is the most difficult to control. The second is that the surface treatment requires bright luster and high anti-corrosion performance. Accessories are the core part of the whole guardrail. The screws of the perfect butt fitting to be connected with the column shall be accurate and firm. It adopts high-strength corrosion-resistant and anti-theft twisted bolts. The screw is made of 304 stainless steel. This price is relatively high, and it is recommended to be used in coastal areas. If it is not in coastal areas, it is recommended to use aluminum alloy bolts, which are cheaper and will not affect the service life. Special tools and experienced installation personnel must be used during installation.