Like western things, then use American PVC guardrail, easy to clean, no maintenance, more environmental protection, it is a good choice. But the quality of domestic PVC guardrail is not very good, a lot of calcium carbonate to add too much, ageing resistance is not good, suggest not to use.
Wrought iron fence and wooden baluster is also possible, but, wrought iron fence need to be constantly maintained, and rusty over a long period of time. Compared to some people recommend the use of wooden fence, wrought iron fence is easier to maintain, to prevent bug eat by moth, serious crack, discoloration, mildewy. Luxury villa with good material, of course, mahogany, rosewood can, but also exquisite craftsmanship.
But to think in terms of privacy, villa general plant trees and woody plants around the wall, plant wall recommended Bermuda grass, or flowers. Wall of woody plants, beautiful style, generous, cost-effective. Also to consider the anticorrosive wood, so, more in line with the overall natural style.
But for villa guardrail, it is recommended to use aluminum guardrail, delicate and beautiful, in line with the temperament of the villa, important is durable, more diversity in design.