1. 50L steel cylinder is filled with 25kg NH3 liquid, and one 20' container can load 220 cylinders 2. 100L steel cylinder is filled with 50kg NH3 liquid, and one 20' container can load 74 cylinders 2. 800L seamless steel cylinder is filled with 400kg NH3 liquid, and one 20' container can load 17 cylinders 4. Depends on customers requirement