Hexagonal Opening Gabion Mesh Hexagonal opening gabion mesh, also named triple twist hexagonal wire netting, double twist hexagonal wire mesh, woven by the hot dipped galvanized steel wire, galfan coating steel wire, PVC coated steel wire, after manual folding process, form gabion box at different dimention, used for river bank and scour protection, channel linings for erosion control, and embankment stability. triple twist heavy hexagonal wire mesh is very well known in the rock fall protection,Coastal Protection,Roads and Pavements,Slope Revetment industry.