1.Material is good quality galvanizing(H.D) square steel pipe, it is thick, the zinc layer thickness ≥２０μｍ
2.surface processing:
a. static electric coating, zinc phosphate, it enhance coating and material adhesive power
b. Zinc-rich Epoxy coating: anti rust for long time and anti shock
c Glossy polyster coating: anti UV stability, anti rust, surface is clean, the rain water is clean
3.All attachment bolt and screw are stainless steel, after anti rust treatment.
4.Friendly environment, no steel rust, color fade, crack, aging, scratch…
5.Safety, reasonable structure, assembly + anti steal screw and bolt, no welding, distance between vertical column 100mm

The product description:
surface tecnique take first complete hot zinc plating then pure dion color powder coating
surface: colorful surface, no color fading
high tense anti crash; durable
long life-span, one time investment, enjoy lifetime
anti-high and low temperature, salt spary, humidity
low mantainence cost: free of repair and easy for cleaning