How to get high security mesh fencing If you want to get a security mesh fencing, weld mesh fencing panels is a godd choice. It will supporty enough security and will offer a wide, unobstructed view. Of course, 358 mesh fencing panels is the best choice for you. It has a little mesh aperture (1/2" ×3"). One adulte's finger cannot put into it. Usually we supply two kinds of surfece treatment. One is galvanized wire and polyester powder coated and the other is hot dipped galvanized. Which one is the best for you, it is decided by the humidity and PH degree of air. Such as, the installation site near the sea, hot dipped galvanized will be better than polyester powder coated.