Characteristics of Zinc Steel Guardrail Type A (Double Horizontal Bar):
1. Zinc steel substrate is made of hot-dip galvanized steel strip to various specifications of galvanized steel, using high-end high-frequency welding technology to weld smoothly and firmly.  
2. The surface zinc content of galvanized steel pipes can reach 60-80mm/㎡, and they can remain rust free for 3-5 years at room temperature.  
3. Zinc steel products are made by further processing galvanized pipes. Process flow: Mechanical processing → Chemical treatment (degreasing → ash removal → phosphating → passivation) → Electrostatic spraying (AkzoNobel powder spraying) → Curing (220 ° high-temperature enamel like curing) After multiple process treatments, it can achieve 20 years of rust free performance
4. The major feature of zinc steel products is the lack of welding. The accessories and pipes developed by zinc steel are perfectly combined to achieve beauty, firmness, and applicability, in line with the standards of the American Fence Association.  
5. The product surface is coated with Akzo Nobel powder and is a long-term strategic partner designated by Akzo (a Fortune 500 company) with a 20-year quality guarantee. All series of products are insured by Ping An Insurance Company of China.
6. Its product has a beautiful appearance and colors can be freely matched, with colors surpassing rainbows. There is no welding or interweaving combination, and it has strong protective function. It is self-cleaning and environmentally friendly, achieving the true meaning of low-carbon, environmentally friendly and green living products advocated by the country.
The craftsmanship of the four bar wrought iron guardrail: It is assembled by seamless connection and horizontal and vertical interweaving. Compared to traditional iron guardrails, installation is faster and the appearance is more beautiful.
Characteristics of four bar wrought iron guardrail
1. Sturdy, durable, securely connected, and structurally sound.  
2. Natural beauty: heavy, rustic, and bright.  
3. Strong plasticity, can create various specifications and styles of wrought iron guardrails according to customer requirements.  
4. Easy to install, not limited by terrain fluctuations, suitable for large-scale use.  
5. The price is relatively affordable.
5 major functions:
1. Anti theft: The top gun head has a deterrent and climbing effect.
2. Anti corrosion: Hot dip galvanized pipes are punched with various specifications of holes as connections to columns and vertical pipes. Then the surface is treated with phosphating and electrostatic spraying. Hot dip galvanized pipe+phosphating+electrostatic spraying. Multi layer protection, with a service life of over 15 years.
3. Environmental Protection: Square tube assembled guardrails can be reused. Surface discoloration can be restored to its original state by repainting.
4. Aesthetic: No maintenance required, it can shine as bright as new after being washed away by rainwater.
5. Anti theft: Assembled connection, I-card method, vertical pipe slipping off or being damaged from the crossbeam. The columns and beams are connected by U-shaped clamps and stainless steel anti-theft bolts. As a whole, it forms an anti-theft system. It can not only play a role in anti-theft, but also has its own anti-theft system to carry out isolation and anti-theft to the end.