Galvanized platforms required in Georgia

Company specializes in building pipelines for sewage treatment, water and heating systems.
We are interested in hot dipped galvanized platforms , leaders and handrails for our project WWTP in Georgia.
If you produce such kind of products could you provide us with technical specification and certificates for your products.
For the handrails we are we would like to clear up if you have connection system with fittings or ball connections similar as its shown in the link below.