Yes, they are available but very very expensive. Most traders/importers import the cheapest items to maximize profits. Only proper authorized distributors might have stock of good quality branded batteries or can import on demand.
Keep in mind that most such batteries are not built to sustain and go through multiple cycles in a day and will hence, likely have shorter service life even compared to local wet batteries. Your charging/discharging device and proper ratings with regards to entire power system will also matter and have effect on the service life obtained.
Most UPS devices available locally do not have specific settings for these batteries (low voltage cutoff, charge rate adjustment, end voltage for CC stage, float voltage adjustments, etc) and due to this, charging cycle is usually not optimal resulting in over discharge and overcharging which again, results in shortened life and damage to the battery.